diff --git a/tests/templates/globals-default.j2 b/tests/templates/globals-default.j2
index 4044f3f3855be667131801c2578aa932e2bf6be2..c1ac9c2824a82ae386793d958cd7b90fa783fe7a 100644
--- a/tests/templates/globals-default.j2
+++ b/tests/templates/globals-default.j2
@@ -44,6 +44,7 @@ neutron_external_interface: "{{ neutron_external_interface_name }}"
 openstack_logging_debug: "True"
 nova_libvirt_logging_debug: "False"
 openstack_service_workers: "1"
+openstack_service_rpc_workers: "1"
 {% endif %}
 
 {% if need_build_image and not is_previous_release %}