1 files changed, 2 insertions, 0 deletions
diff --git a/synapse/storage/schema/im.sql b/synapse/storage/schema/im.sql
index cb0c494ddf..0300bb29e1 100644
--- a/synapse/storage/schema/im.sql
+++ b/synapse/storage/schema/im.sql
@@ -35,11 +35,13 @@ CREATE INDEX IF NOT EXISTS events_room_id ON events (room_id);
 
 CREATE TABLE IF NOT EXISTS event_json(
     event_id TEXT NOT NULL,
+    room_id TEXT NOT NULL,
     json BLOB NOT NULL,
     CONSTRAINT ev_j_uniq UNIQUE (event_id)
 );
 
 CREATE INDEX IF NOT EXISTS event_json_id ON event_json(event_id);
+CREATE INDEX IF NOT EXISTS event_json_room_id ON event_json(room_id);
 
 
 CREATE TABLE IF NOT EXISTS state_events(