diff --git a/federationapi/routing/send_test.go b/federationapi/routing/send_test.go
index 91ed9e602..1a957aee3 100644
--- a/federationapi/routing/send_test.go
+++ b/federationapi/routing/send_test.go
@@ -84,6 +84,10 @@ type testRoomserverAPI struct {
 	queryLatestEventsAndState  func(*api.QueryLatestEventsAndStateRequest) api.QueryLatestEventsAndStateResponse
 }
 
+func (t *testRoomserverAPI) QueryRoomReceipts(ctx context.Context, req *api.QueryRoomReceiptRequest, res *api.QueryRoomReceiptResponse) error {
+	return nil
+}
+
 func (t *testRoomserverAPI) SetFederationSenderAPI(fsAPI fsAPI.FederationSenderInternalAPI) {}
 
 func (t *testRoomserverAPI) InputRoomEvents(
diff --git a/syncapi/internal/keychange_test.go b/syncapi/internal/keychange_test.go
index c25011814..b2e0eb8ed 100644
--- a/syncapi/internal/keychange_test.go
+++ b/syncapi/internal/keychange_test.go
@@ -54,6 +54,10 @@ type mockRoomserverAPI struct {
 	roomIDToJoinedMembers map[string][]string
 }
 
+func (s *mockRoomserverAPI) QueryRoomReceipts(ctx context.Context, req *api.QueryRoomReceiptRequest, res *api.QueryRoomReceiptResponse) error {
+	return nil
+}
+
 // QueryRoomsForUser retrieves a list of room IDs matching the given query.
 func (s *mockRoomserverAPI) QueryRoomsForUser(ctx context.Context, req *api.QueryRoomsForUserRequest, res *api.QueryRoomsForUserResponse) error {
 	return nil