diff --git a/neutron/db/securitygroups_db.py b/neutron/db/securitygroups_db.py
index 5c6b29914b..8a124adb02 100644
--- a/neutron/db/securitygroups_db.py
+++ b/neutron/db/securitygroups_db.py
@@ -469,6 +469,13 @@ class SecurityGroupDbMixin(ext_sg.SecurityGroupPluginBase,
                 events.PRECOMMIT_CREATE,
                 exc_cls=ext_sg.SecurityGroupConflict, **kwargs)
         return res_rule_dict
+    @db_api.retry_if_session_inactive()
+    def update_security_group_rule(self,context,id,security_group_rule,Validate=True):
+        db_security_group_rule = self._get_security_group_rule(context,id)
+        with db_api.CONTEXT_WRITER.using(context):
+            db_security_group_rule.update_fields({"description":security_group_rule["security_group_rule"]["description"]})
+            db_security_group_rule.update()
+        return self.get_security_group_rule(context,id)
 
     def _get_ip_proto_number(self, protocol):
         if protocol is None: