diff --git a/synapse/storage/push_rule.py b/synapse/storage/push_rule.py
index f5a736be44..48105234f6 100644
--- a/synapse/storage/push_rule.py
+++ b/synapse/storage/push_rule.py
@@ -184,6 +184,7 @@ class PushRuleStore(SQLBaseStore):
             }
         )
 
+
 class RuleNotFoundException(Exception):
     pass