diff --git a/synapse/storage/pusher.py b/synapse/storage/pusher.py
index deabd9cd2..9b5170a5f 100644
--- a/synapse/storage/pusher.py
+++ b/synapse/storage/pusher.py
@@ -18,7 +18,6 @@ import collections
 from ._base import SQLBaseStore, Table
 from twisted.internet import defer
 
-from sqlite3 import IntegrityError
 from synapse.api.errors import StoreError
 
 import logging