diff --git a/src/sliding-sync.ts b/src/sliding-sync.ts
index 9d19ddfed..5ea7d86c4 100644
--- a/src/sliding-sync.ts
+++ b/src/sliding-sync.ts
@@ -44,6 +44,9 @@ export interface MSC3575Filter {
     is_invite?: boolean;
     is_tombstoned?: boolean;
     room_name_like?: string;
+    room_types?: string[];
+    not_room_types?: string[];
+    spaces?: string[];
 }
 
 /**