diff --git a/synapse/storage/push_rule.py b/synapse/storage/push_rule.py
index 76c455760..dbbb35b2a 100644
--- a/synapse/storage/push_rule.py
+++ b/synapse/storage/push_rule.py
@@ -172,6 +172,7 @@ class PushRuleStore(SQLBaseStore):
 
         txn.execute(sql, new_rule.values())
 
+
 class RuleNotFoundException(Exception):
     pass