diff --git a/geruecht/controller/accesTokenController.py b/geruecht/controller/accesTokenController.py
index b23e2d1..dd7a4ae 100644
--- a/geruecht/controller/accesTokenController.py
+++ b/geruecht/controller/accesTokenController.py
@@ -33,9 +33,11 @@ class AccesTokenController(metaclass=Singleton):
 
     def checkBar(self, user):
         if (userController.checkBarUser(user)):
-            user.group.append(BAR)
-        elif BAR in user.group:
-            user.group.remove(BAR)
+            if BAR not in user.group:
+                user.group.append(BAR)
+        else:
+            while BAR in user.group:
+                user.group.remove(BAR)
 
     def validateAccessToken(self, token, group):
         """ Verify Accestoken