diff --git a/packstack/plugins/postscript_951.py b/packstack/plugins/postscript_951.py
index eb0e88a2e..d17527c06 100644
--- a/packstack/plugins/postscript_951.py
+++ b/packstack/plugins/postscript_951.py
@@ -56,7 +56,8 @@ def run_tempest(config, messages):
     print("Running Tempest on %s" % config['CONFIG_TEMPEST_HOST'])
     server = utils.ScriptRunner(config['CONFIG_TEMPEST_HOST'])
     server.append('pushd /var/lib/tempest')
-    server.append('tox -eall -- --concurrency=2 %s > %s'
-                  % (config['CONFIG_RUN_TEMPEST_TESTS'], logfile))
+    server.append('tox -eall \'(%s)\' -- --concurrency=2  > %s'
+                  % (config['CONFIG_RUN_TEMPEST_TESTS'].replace(' ', '|'),
+                     logfile))
     server.append('popd')
     server.execute()