diff --git a/euscanwww/djeuscan/migrations/0023_auto__del_unique_version_slot_overlay_revision_version_package__add_un.py b/euscanwww/djeuscan/migrations/0023_auto__del_unique_version_slot_overlay_revision_version_package__add_un.py
new file mode 100644
index 0000000..456ec7f
--- /dev/null
+++ b/euscanwww/djeuscan/migrations/0023_auto__del_unique_version_slot_overlay_revision_version_package__add_un.py
@@ -0,0 +1,187 @@
+# -*- coding: utf-8 -*-
+import datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+        # Removing unique constraint on 'Version', fields ['slot', 'overlay', 'revision', 'version', 'package']
+        db.delete_unique('djeuscan_version', ['slot', 'overlay', 'revision', 'version', 'package_id'])
+
+        # Adding unique constraint on 'Version', fields ['overlay', 'revision', 'version', 'package']
+        db.create_unique('djeuscan_version', ['overlay', 'revision', 'version', 'package_id'])
+
+    def backwards(self, orm):
+        # Removing unique constraint on 'Version', fields ['overlay', 'revision', 'version', 'package']
+        db.delete_unique('djeuscan_version', ['overlay', 'revision', 'version', 'package_id'])
+
+        # Adding unique constraint on 'Version', fields ['slot', 'overlay', 'revision', 'version', 'package']
+        db.create_unique('djeuscan_version', ['slot', 'overlay', 'revision', 'version', 'package_id'])
+
+    models = {
+        'auth.group': {
+            'Meta': {'object_name': 'Group'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
+            'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
+        },
+        'auth.permission': {
+            'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
+            'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
+        },
+        'auth.user': {
+            'Meta': {'object_name': 'User'},
+            'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
+            'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
+            'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'contenttypes.contenttype': {
+            'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
+            'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
+        },
+        'djeuscan.category': {
+            'Meta': {'object_name': 'Category'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '128'})
+        },
+        'djeuscan.categorylog': {
+            'Meta': {'object_name': 'CategoryLog', '_ormbases': ['djeuscan.Log']},
+            'category': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'log_ptr': ('django.db.models.fields.related.OneToOneField', [], {'to': "orm['djeuscan.Log']", 'unique': 'True', 'primary_key': 'True'})
+        },
+        'djeuscan.euscanresult': {
+            'Meta': {'object_name': 'EuscanResult'},
+            'datetime': ('django.db.models.fields.DateTimeField', [], {}),
+            'ebuild': ('django.db.models.fields.CharField', [], {'max_length': '256', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'package': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['djeuscan.Package']"}),
+            'result': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
+            'scan_time': ('django.db.models.fields.FloatField', [], {'null': 'True', 'blank': 'True'})
+        },
+        'djeuscan.herd': {
+            'Meta': {'object_name': 'Herd'},
+            'email': ('django.db.models.fields.CharField', [], {'max_length': '128', 'null': 'True', 'blank': 'True'}),
+            'herd': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '128'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'maintainers': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['djeuscan.Maintainer']", 'symmetrical': 'False'})
+        },
+        'djeuscan.herdlog': {
+            'Meta': {'object_name': 'HerdLog', '_ormbases': ['djeuscan.Log']},
+            'herd': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['djeuscan.Herd']"}),
+            'log_ptr': ('django.db.models.fields.related.OneToOneField', [], {'to': "orm['djeuscan.Log']", 'unique': 'True', 'primary_key': 'True'})
+        },
+        'djeuscan.log': {
+            'Meta': {'object_name': 'Log'},
+            'datetime': ('django.db.models.fields.DateTimeField', [], {}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'n_packages_gentoo': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'n_packages_outdated': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'n_packages_overlay': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'n_versions_gentoo': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'n_versions_overlay': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'n_versions_upstream': ('django.db.models.fields.IntegerField', [], {'default': '0'})
+        },
+        'djeuscan.maintainer': {
+            'Meta': {'object_name': 'Maintainer'},
+            'email': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '128'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '128'})
+        },
+        'djeuscan.maintainerlog': {
+            'Meta': {'object_name': 'MaintainerLog', '_ormbases': ['djeuscan.Log']},
+            'log_ptr': ('django.db.models.fields.related.OneToOneField', [], {'to': "orm['djeuscan.Log']", 'unique': 'True', 'primary_key': 'True'}),
+            'maintainer': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['djeuscan.Maintainer']"})
+        },
+        'djeuscan.overlay': {
+            'Meta': {'object_name': 'Overlay'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '128'})
+        },
+        'djeuscan.package': {
+            'Meta': {'unique_together': "(['category', 'name'],)", 'object_name': 'Package'},
+            'category': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'description': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
+            'herds': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['djeuscan.Herd']", 'symmetrical': 'False', 'blank': 'True'}),
+            'homepage': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'last_version_gentoo': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'last_version_gentoo'", 'null': 'True', 'on_delete': 'models.SET_NULL', 'to': "orm['djeuscan.Version']"}),
+            'last_version_overlay': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'last_version_overlay'", 'null': 'True', 'on_delete': 'models.SET_NULL', 'to': "orm['djeuscan.Version']"}),
+            'last_version_upstream': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'last_version_upstream'", 'null': 'True', 'on_delete': 'models.SET_NULL', 'to': "orm['djeuscan.Version']"}),
+            'maintainers': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['djeuscan.Maintainer']", 'symmetrical': 'False', 'blank': 'True'}),
+            'n_overlay': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'n_packaged': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'n_versions': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '128'})
+        },
+        'djeuscan.problemreport': {
+            'Meta': {'object_name': 'ProblemReport'},
+            'datetime': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'message': ('django.db.models.fields.TextField', [], {}),
+            'package': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['djeuscan.Package']"}),
+            'subject': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'version': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['djeuscan.Version']", 'null': 'True', 'blank': 'True'})
+        },
+        'djeuscan.refreshpackagequery': {
+            'Meta': {'object_name': 'RefreshPackageQuery'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'package': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['djeuscan.Package']"}),
+            'priority': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'users': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.User']", 'symmetrical': 'False'})
+        },
+        'djeuscan.version': {
+            'Meta': {'unique_together': "(['package', 'revision', 'version', 'overlay'],)", 'object_name': 'Version'},
+            'alive': ('django.db.models.fields.BooleanField', [], {'default': 'True', 'db_index': 'True'}),
+            'confidence': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'ebuild_path': ('django.db.models.fields.CharField', [], {'max_length': '256', 'blank': 'True'}),
+            'handler': ('django.db.models.fields.CharField', [], {'max_length': '128', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'metadata_path': ('django.db.models.fields.CharField', [], {'max_length': '256', 'blank': 'True'}),
+            'overlay': ('django.db.models.fields.CharField', [], {'default': "'gentoo'", 'max_length': '128', 'db_index': 'True', 'blank': 'True'}),
+            'package': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['djeuscan.Package']"}),
+            'packaged': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'revision': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'slot': ('django.db.models.fields.CharField', [], {'default': "''", 'max_length': '128', 'blank': 'True'}),
+            'urls': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
+            'version': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'vtype': ('django.db.models.fields.CharField', [], {'max_length': '128', 'blank': 'True'})
+        },
+        'djeuscan.versionlog': {
+            'Meta': {'object_name': 'VersionLog'},
+            'action': ('django.db.models.fields.IntegerField', [], {}),
+            'datetime': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'overlay': ('django.db.models.fields.CharField', [], {'default': "'gentoo'", 'max_length': '128', 'blank': 'True'}),
+            'package': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['djeuscan.Package']"}),
+            'packaged': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'revision': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'slot': ('django.db.models.fields.CharField', [], {'default': "''", 'max_length': '128', 'blank': 'True'}),
+            'version': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'vtype': ('django.db.models.fields.CharField', [], {'max_length': '128', 'blank': 'True'})
+        },
+        'djeuscan.worldlog': {
+            'Meta': {'object_name': 'WorldLog', '_ormbases': ['djeuscan.Log']},
+            'log_ptr': ('django.db.models.fields.related.OneToOneField', [], {'to': "orm['djeuscan.Log']", 'unique': 'True', 'primary_key': 'True'})
+        }
+    }
+
+    complete_apps = ['djeuscan']
\ No newline at end of file
diff --git a/euscanwww/djeuscan/models.py b/euscanwww/djeuscan/models.py
index e8ba83a..2dbe85c 100644
--- a/euscanwww/djeuscan/models.py
+++ b/euscanwww/djeuscan/models.py
@@ -154,11 +154,15 @@ class Version(models.Model):
     metadata_path = models.CharField(blank=True, max_length=256)
 
     class Meta:
-        unique_together = ['package', 'slot', 'revision', 'version', 'overlay']
+        unique_together = ['package', 'revision', 'version', 'overlay']
 
     @property
     def tag(self):
-        return '%s-%s-%s' % (self.version, self.revision, self.overlay)
+        return '%s%s%s' % (
+            self.version,
+            "-" + self.revision if self.revision != "r0" else "",
+            "-" + self.overlay if self.overlay else "-upstream"
+        )
 
     @property
     def urls_list(self):
@@ -171,10 +175,11 @@ class Version(models.Model):
         )
 
     def __unicode__(self):
-        return '%s/%s-%s%s:%s [%s]' % (
+        return '%s/%s-%s%s%s [%s]' % (
             self.package.category, self.package.name, self.version,
             '-' + self.revision if self.revision != '-r0' else '',
-            self.slot, self.overlay or "<upstream>"
+            ':' + self.slot if self.slot and self.slot != '0' else '',
+            self.overlay or "<upstream>"
         )
 
     def save(self, *args, **kwargs):
@@ -206,15 +211,19 @@ class VersionLog(models.Model):
 
     @property
     def tag(self):
-        return '%s-%s:%s-%s' % (self.version, self.revision, self.slot,
-                                self.overlay)
+        return '%s%s%s' % (
+            self.version,
+            "-" + self.revision if self.revision != "r0" else "",
+            "-" + self.overlay if self.overlay else "-upstream"
+        )
 
     def __unicode__(self):
         txt = '+ ' if self.action == self.VERSION_ADDED else '- '
-        txt += '%s/%s-%s-%s:%s [%s]' % (
+        txt += '%s/%s-%s%s%s [%s]' % (
             self.package.category, self.package.name, self.version,
-            self.revision, self.slot,
-            self.overlay or '<upstream>'
+            '-' + self.revision if self.revision != '-r0' else '',
+            ':' + self.slot if self.slot and self.slot != '0' else '',
+            self.overlay or "<upstream>"
         )
         return txt
 
diff --git a/euscanwww/djeuscan/templates/euscan/_package_details.html b/euscanwww/djeuscan/templates/euscan/_package_details.html
index abea766..4345b32 100644
--- a/euscanwww/djeuscan/templates/euscan/_package_details.html
+++ b/euscanwww/djeuscan/templates/euscan/_package_details.html
@@ -51,7 +51,7 @@
   <dd>
     <ul>
       {% for version in packaged %}
-      <li id="version-{{ version.version }}-{{version.revision }}:{{ version.slot }}-{{ version.overlay }}">
+      <li id="version-{{ version.tag }}">
         {% if version.overlay == "gentoo" %}
           <img src="{{ STATIC_URL }}img/gentoo-icon.png" alt="gentoo" title="In Gentoo" />
         {% else %}
@@ -64,7 +64,7 @@
 
         {% if version.ebuild_path %}
           <a href="{% url "package_version_ebuild" package.category package.name version.tag %}">
-            {{ version.version }}-{{ version.revision }} :{{ version.slot }} [{{ version.overlay }}]
+            {{ version.version }}{% if version.revision != "r0" %}-{{ version.revision }}{% endif %}{% if version.slot != "0" %}:{{ version.slot }}{% endif %}
           </a>
         {% endif %}
         {% if version.metadata_path %}