diff --git a/lib/ansible/modules/cloud/openstack/os_keystone_domain.py b/lib/ansible/modules/cloud/openstack/os_keystone_domain.py
index b355971e8b5..dce64f80eb3 100644
--- a/lib/ansible/modules/cloud/openstack/os_keystone_domain.py
+++ b/lib/ansible/modules/cloud/openstack/os_keystone_domain.py
@@ -106,7 +106,8 @@ id:
 '''
 
 def _needs_update(module, domain):
-    if domain.description != module.params['description']:
+    if module.params['description'] is not None and \
+       domain.description != module.params['description']:
         return True
     if domain.enabled != module.params['enabled']:
         return True