1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/storage/engines/postgres.py b/synapse/storage/engines/postgres.py
index 7125f66f01..64e34265f6 100644
--- a/synapse/storage/engines/postgres.py
+++ b/synapse/storage/engines/postgres.py
@@ -53,7 +53,7 @@ class PostgresEngine(object):
         return False
 
     def is_connection_closed(self, conn):
-        return bool(conn)
+        return bool(conn.closed)
 
     def lock_table(self, txn, table):
         txn.execute("LOCK TABLE %s in EXCLUSIVE MODE" % (table,))