diff --git a/tempest/api/compute/admin/test_simple_tenant_usage.py b/tempest/api/compute/admin/test_simple_tenant_usage.py
index 8986db8..a4ed8dc 100644
--- a/tempest/api/compute/admin/test_simple_tenant_usage.py
+++ b/tempest/api/compute/admin/test_simple_tenant_usage.py
@@ -59,7 +59,9 @@
                 return True
             except e.InvalidHTTPResponseBody:
                 return False
-        test.call_until_true(is_valid, duration, 1)
+        self.assertEqual(test.call_until_true(is_valid, duration, 1), True,
+                         "%s not return valid response in %s secs" % (
+                             func.__name__, duration))
         return self.resp
 
     @test.idempotent_id('062c8ae9-9912-4249-8b51-e38d664e926e')