diff --git a/admin/editgroup.php b/admin/editgroup.php
index 22f80efc54..e8cbe482d2 100755
--- a/admin/editgroup.php
+++ b/admin/editgroup.php
@@ -45,7 +45,7 @@
      }
 
      if (! $error) {
-        $phpgw->db->lock(array('phpgw_accounts','preferences','phpgw_config','phpgw_applications','phpgw_hooks','phpgw_sessions','phpgw_acl'));
+        $phpgw->db->lock(Array('phpgw_accounts','phpgw_preferences','phpgw_config','phpgw_applications','phpgw_hooks','phpgw_sessions','phpgw_acl'));
         $apps = CreateObject('phpgwapi.applications',intval($group_id));
         $apps_before = $apps->read_account_specific();
         $apps->update_data(Array());
diff --git a/admin/newgroup.php b/admin/newgroup.php
index 0df7d6b3f0..a2102b4167 100755
--- a/admin/newgroup.php
+++ b/admin/newgroup.php
@@ -43,7 +43,7 @@
      }
 
      if (! $error) {
-        $phpgw->db->lock(array('phpgw_accounts','preferences','phpgw_config','phpgw_applications','phpgw_hooks','phpgw_sessions','phpgw_acl'));
+        $phpgw->db->lock(array('phpgw_accounts','phpgw_preferences','phpgw_config','phpgw_applications','phpgw_hooks','phpgw_sessions','phpgw_acl'));
         while(1) {
           $group_id = mt_rand (1000, 60000);
           $phpgw->db->query("SELECT account_id FROM phpgw_accounts WHERE account_id=$group_id",__LINE__,__FILE__);