1 files changed, 1 insertions, 1 deletions

diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py

index 24329879e5..42cd3c83ad 100644
--- a/synapse/storage/__init__.py
+++ b/synapse/storage/__init__.py
@@ -317,7 +317,7 @@ class DataStore(RoomMemberStore, RoomStore,
                               thirty_days_ago_in_secs))
 
             for row in txn:
-                if row[0] is 'unknown':
+                if row[0] == 'unknown':
                     pass
                 results[row[0]] = row[1]