diff --git a/packages/federation-sdk/src/services/room.service.ts b/packages/federation-sdk/src/services/room.service.ts
index b4ac1d54..f3beb34d 100644
--- a/packages/federation-sdk/src/services/room.service.ts
+++ b/packages/federation-sdk/src/services/room.service.ts
@@ -1377,6 +1377,7 @@ export class RoomService {
 			{
 				room_id: roomId,
 				sender: sender,
+				state_key: '',
 				content: {
 					body: reason,
 					replacement_room: replacementRoomId,
diff --git a/packages/room/src/types/v3-11.ts b/packages/room/src/types/v3-11.ts
index cfee2d9a..3d2eb31d 100644
--- a/packages/room/src/types/v3-11.ts
+++ b/packages/room/src/types/v3-11.ts
@@ -730,7 +730,7 @@ export type PduRoomTombstoneEventContent = z.infer<
 >;
 
 const EventPduTypeRoomTombstone = z.object({
-	...PduNoContentTimelineEventSchema,
+	...PduNoContentEmptyStateKeyStateEventSchema,
 	type: z.literal('m.room.tombstone'),
 	content: PduRoomTombstoneEventContentSchema,
 });