diff --git a/restservice/src/main/java/com/plannaplan/controllers/GroupController.java b/restservice/src/main/java/com/plannaplan/controllers/GroupController.java
index e8e592a..a84a5b3 100644
--- a/restservice/src/main/java/com/plannaplan/controllers/GroupController.java
+++ b/restservice/src/main/java/com/plannaplan/controllers/GroupController.java
@@ -31,7 +31,7 @@ public class GroupController {
         for (Groups g : groups) {
             Dictionary<String, Object> group = new Hashtable<>();
             group.put("id", g.getId());
-            group.put("day", g.getDay().label + 1);
+            group.put("day", g.getDay().label);
             group.put("time", g.getTimeString());
             group.put("lecturer", g.getLecturer().toString());
             group.put("room", g.getRoom());