diff --git a/tests/dbtest_session.py b/tests/dbtest_session.py
index 16801422d26eddb3de767af7afcbf907e86c20eb..26dff15f8a813ef3467ad0a241f16c0aa40bb85e 100755
--- a/tests/dbtest_session.py
+++ b/tests/dbtest_session.py
@@ -171,7 +171,7 @@ class SessionTestCase(DBDakTestCase):
         self.assertEqual(uid1.uid, uid3.uid)
         self.assertTrue(uid3 in new_session)
         # test for ressource leaks with mass cloning
-        for _ in xrange(1, 1000):
+        for _ in range(1, 1000):
             uid1.clone()
 
     def classes_to_clean(self):