diff --git a/tests/test_paybox.py b/tests/test_paybox.py
index b504e04..2571f04 100644
--- a/tests/test_paybox.py
+++ b/tests/test_paybox.py
@@ -38,7 +38,7 @@ BACKEND_PARAMS = {
         u'ABCDEF0123456789ABCDEF0123456789ABCDE'
         u'F0123456789ABCDEF'
     ),
-    'callback': u'http://example.com/callback',
+    'automatic_return_url': u'http://example.com/callback',
 }