diff --git a/test/phpunit/UserGroupTest.php b/test/phpunit/UserGroupTest.php
index a74e9d81726..4b3b0244ec7 100644
--- a/test/phpunit/UserGroupTest.php
+++ b/test/phpunit/UserGroupTest.php
@@ -279,7 +279,7 @@ class UserGroupTest extends PHPUnit_Framework_TestCase
 
         $localobject=new UserGroup($this->savdb);
         $result=$localobject->fetch($id);
-        $result=$localobject->delete($id);
+        $result=$localobject->delete($user);
 
         print __METHOD__." id=".$id." result=".$result."\n";
         $this->assertLessThan($result, 0);