diff --git a/core/userrights.class.inc.php b/core/userrights.class.inc.php
index defbe38d0a..787969c9d5 100644
--- a/core/userrights.class.inc.php
+++ b/core/userrights.class.inc.php
@@ -1259,7 +1259,7 @@ class CAS_SelfRegister implements iSelfRegister
 								break;
 							}
 						}
-						else if ($sPattern == $sGroupName)
+						else if ($sCASPattern == $sGroupName)
 						{
 							$bIsMember = true;
 							break;