diff --git a/authzgroups.php b/authzgroups.php
index 11d0158..0b305af 100644
--- a/authzgroups.php
+++ b/authzgroups.php
@@ -196,10 +196,19 @@ class authzgroups
     if ($this->dbRight == null)
       throw new Exception (dgettext ("domframework",
                                      "DB for Right is not connected"), 500);
-    $this->dbObject->createTable ();
-    $this->dbGroup->createTable ();
-    $this->dbGroupMember->createTable ();
-    $this->dbRight->createTable ();
+    $tables = array ("Object", "Group", "GroupMember", "Right");
+    foreach ($tables as $table)
+    {
+      try 
+      {
+        $class= "db$table";
+        $this->$class->createTable ();
+      }
+      catch (Exception $e)
+      {
+        echo $e->getMessage()."\n";
+      }
+    }
     return TRUE;
   }