1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/storage/database.py b/synapse/storage/database.py
index 763722d6bc..0217e63108 100644
--- a/synapse/storage/database.py
+++ b/synapse/storage/database.py
@@ -160,7 +160,7 @@ class LoggingDatabaseConnection:
         self.conn.__enter__()
         return self
 
-    def __exit__(self, exc_type, exc_value, traceback) -> bool:
+    def __exit__(self, exc_type, exc_value, traceback) -> Optional[bool]:
         return self.conn.__exit__(exc_type, exc_value, traceback)
 
     # Proxy through any unknown lookups to the DB conn class.