diff --git a/dev-scheme/chicken/metadata.xml b/dev-scheme/chicken/metadata.xml
index 725411d..335a6d2 100644
--- a/dev-scheme/chicken/metadata.xml
+++ b/dev-scheme/chicken/metadata.xml
@@ -1,15 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+
 <pkgmetadata>
-	<maintainer type="person">
-		<email>xgqt@protonmail.com</email>
-		<name>Maciej Barć</name>
-	</maintainer>
-	<longdescription lang="en">
-		CHICKEN is a compiler for the Scheme programming language.
-		CHICKEN produces portable, efficient C, supports almost all of
-		the current Scheme language standard, the Revised5 Report on
-		the Algorithmic Language Scheme (R5RS ), and includes many enhancements
-		and extensions. CHICKEN runs on MacOS X, Windows, and many Unix flavours.
-	</longdescription>
+  <maintainer type="person">
+    <email>xgqt@protonmail.com</email>
+    <name>Maciej Barć</name>
+  </maintainer>
+  <longdescription lang="en">
+    CHICKEN is a compiler for the Scheme programming language.
+    CHICKEN produces portable, efficient C, supports almost all of
+    the current Scheme language standard, the Revised5 Report on
+    the Algorithmic Language Scheme (R5RS ), and includes many enhancements
+    and extensions. CHICKEN runs on MacOS X, Windows, and many Unix flavours.
+  </longdescription>
+  <upstream>
+    <bugs-to>http://bugs.call-cc.org/</bugs-to>
+  </upstream>
 </pkgmetadata>