diff --git a/cloud/openstack/os_security_group_rule.py b/cloud/openstack/os_security_group_rule.py
index 8422a920791..903d694bab3 100644
--- a/cloud/openstack/os_security_group_rule.py
+++ b/cloud/openstack/os_security_group_rule.py
@@ -111,6 +111,7 @@ def main():
     module_kwargs = openstack_module_kwargs(
         mutually_exclusive=[
             ['remote_ip_prefix', 'remote_group'],
+        ]
     )
     module = AnsibleModule(argument_spec, **module_kwargs)