diff --git a/src/app/features/estate/joinEstateRoom.test.ts b/src/app/features/estate/joinEstateRoom.test.ts
index e063b337..8976f325 100644
--- a/src/app/features/estate/joinEstateRoom.test.ts
+++ b/src/app/features/estate/joinEstateRoom.test.ts
@@ -18,8 +18,7 @@ const recordingClient = (joinRoom = vi.fn().mockResolvedValue({ roomId: '!r:game
           return joinRoom(...args);
         };
       }
-      return (...args: unknown[]) => {
-        void args;
+      return () => {
         calls.push(prop);
         throw new Error(`unexpected client call: ${prop}`);
       };
diff --git a/src/app/features/estate/useEstate.ts b/src/app/features/estate/useEstate.ts
index fc3d8009..6ffccd1e 100644
--- a/src/app/features/estate/useEstate.ts
+++ b/src/app/features/estate/useEstate.ts
@@ -104,7 +104,7 @@ export const useEstate = (rootId: string): Estate => {
     });
     return buildEstate({
       rootId,
-      hierarchy: Array.from(rooms.values()) as EstateHierarchyRoom[],
+      hierarchy: Array.from(rooms.values()) as unknown as EstateHierarchyRoom[],
       stewardships,
       membership,
       directRoomIds: Array.from(mDirects).filter((id) => joined.includes(id)),