diff --git a/src/db/migrations/0043-clean-unbridged-member-cache.sql b/src/db/migrations/0043-clean-unbridged-member-cache.sql
new file mode 100644
index 0000000..d51b426
--- /dev/null
+++ b/src/db/migrations/0043-clean-unbridged-member-cache.sql
@@ -0,0 +1,9 @@
+BEGIN TRANSACTION;
+
+DELETE FROM member_cache
+WHERE room_id NOT IN (SELECT room_id FROM channel_room)
+	AND room_id NOT IN (SELECT space_id FROM guild_space)
+	AND room_id NOT IN (SELECT room_id FROM historical_channel_room)
+	AND room_id NOT IN (SELECT room_id FROM invite);
+
+COMMIT;
diff --git a/src/m2d/event-dispatcher.js b/src/m2d/event-dispatcher.js
index c71f574..0f48783 100644
--- a/src/m2d/event-dispatcher.js
+++ b/src/m2d/event-dispatcher.js
@@ -422,7 +422,7 @@ async event => {
 
 	if (utils.eventSenderIsFromDiscord(event.state_key)) return
 
-	const exists = select("channel_room", "room_id", {room_id: event.room_id}) ?? select("guild_space", "space_id", {space_id: event.room_id})
+	const exists = select("channel_room", "room_id", {room_id: event.room_id}).pluck().get() ?? select("guild_space", "space_id", {space_id: event.room_id}).pluck().get()
 	if (!exists) return // don't cache members in unbridged rooms
 
 	// Member is here