diff --git a/whitebox_neutron_tempest_plugin/tests/scenario/base.py b/whitebox_neutron_tempest_plugin/tests/scenario/base.py
index 00db31a..963db95 100644
--- a/whitebox_neutron_tempest_plugin/tests/scenario/base.py
+++ b/whitebox_neutron_tempest_plugin/tests/scenario/base.py
@@ -541,7 +541,7 @@ class BaseTempestWhiteboxTestCase(base.BaseTempestTestCase):
         LOG.debug("Checking for service '%s' (regex) existence on host '%s'.",
                   service_regex, host_ip)
         catch = ssh_client.exec_command(
-            "systemctl --type=service | grep '{}'".format(
+            "systemctl --type=service | grep '{}'; true".format(
                 service_regex)).strip
         if catch:
             LOG.debug("Service found on host '%s':\n%s",