diff --git a/functional/test_resource_group.py b/functional/test_resource_group.py
index 7da20a1..f6157fc 100644
--- a/functional/test_resource_group.py
+++ b/functional/test_resource_group.py
@@ -98,7 +98,7 @@
 
         # Prove validation works for non-zero create/update
         template_two_nested = self.template.replace("count: 0", "count: 2")
-        expected_err = "length Value 'BAD' is not an integer"
+        expected_err = "Value 'BAD' is not an integer"
         ex = self.assertRaises(exc.HTTPBadRequest, self.update_stack,
                                stack_identifier, template_two_nested,
                                environment=env, files=files)