diff --git a/toolset/utils/docker_helper.py b/toolset/utils/docker_helper.py
index 597b3d7e61e..c14204a5889 100644
--- a/toolset/utils/docker_helper.py
+++ b/toolset/utils/docker_helper.py
@@ -336,7 +336,7 @@ def test_client_connection(self, url):
         try:
             self.client.containers.run(
                 'techempower/tfb.wrk',
-                'curl --max-time 5 %s' % url,
+                'curl --fail --max-time 5 %s' % url,
                 remove=True,
                 log_config={'type': None},
                 network=self.benchmarker.config.network,