diff --git a/tasks/generate-tempestconf.sh.j2 b/tasks/generate-tempestconf.sh.j2
index b342670..44fe503 100644
--- a/tasks/generate-tempestconf.sh.j2
+++ b/tasks/generate-tempestconf.sh.j2
@@ -13,7 +13,9 @@ discover-tempest-config \
 {% if deployer_input is defined %}
 --deployer-input {{ deployer_input }} \
 {% endif %}
-{{ share_tempestconf_overrides | default([]) | join(' ') }} \
+{% if 'shared_file_system' in refstack_target_programs %}
+{{ share_tempestconf_overrides | join(' ') }} \
+{% endif %}
 {% if additional_tempestconf_params is defined %}
 {{ additional_tempestconf_params }} \
 {% endif %}