diff --git a/lam/lib/modules/posixGroup.inc b/lam/lib/modules/posixGroup.inc
index ff2a5840..0d90f71d 100644
--- a/lam/lib/modules/posixGroup.inc
+++ b/lam/lib/modules/posixGroup.inc
@@ -568,10 +568,10 @@ class posixGroup extends baseModule {
 		else $this->changegids=false;
 		if ($this->attributes['gidNumber'][0]!=$post['gidNumber'] || ($this->triggered_messages['gidNumber'][0]='ERROR')) {
 			// Check if GID is valid. If none value was entered, the next useable value will be inserted
-			// load min and may uidNumber
+			// load min and max GID number
 			$minID = intval($this->moduleSettings['posixGroup_minGID'][0]);
 			$maxID = intval($this->moduleSettings['posixGroup_maxGID'][0]);
-			$dn_gids = $_SESSION['cache']->get_cache('gidNumber', 'posixGroup', '*');
+			$dn_gids = $_SESSION['cache']->get_cache('gidNumber', 'posixGroup', 'group');
 			// get_cache will return an array ( dn1 => array(uidnumber1), dn2 => array(uidnumber2), ... )
 			if(is_array($dn_gids)) {
 				foreach ($dn_gids as $gid) $gids[] = $gid[0];
@@ -618,11 +618,11 @@ class posixGroup extends baseModule {
 			// Create automatic useraccount with number if original user already exists
 			// Reset name to original name if new name is in use
 			// Set username back to original name if new username is in use
-			if ($_SESSION['cache']->in_cache($this->attributes['cn'][0],'cn', '*')!=false && ($this->orig['cn'][0]!='')) {
+			if ($_SESSION['cache']->in_cache($this->attributes['cn'][0],'cn', 'group')!=false && ($this->orig['cn'][0]!='')) {
 				$this->attributes['cn'][0] = $this->orig['cn'][0];
 			}
 			// Change gid to a new gid until a free gid is found
-			else while ($_SESSION['cache']->in_cache($this->attributes['cn'][0], 'cn', '*')) {
+			else while ($_SESSION['cache']->in_cache($this->attributes['cn'][0], 'cn', 'group')) {
 				// get last character of username
 				$lastchar = substr($this->attributes['cn'][0], strlen($this->attributes['cn'][0])-1, 1);
 				// Last character is no number