diff --git a/cmds/installd/utils.h b/cmds/installd/utils.h
index 5e396c7..9195cb8 100644
--- a/cmds/installd/utils.h
+++ b/cmds/installd/utils.h
@@ -143,6 +143,8 @@
 
 void add_cache_files(cache_t* cache, const std::string& data_path);
 
+void add_preloads_file_cache(cache_t* cache, const char* volume_uuid);
+
 void clear_cache_files(const std::string& data_path, cache_t* cache, int64_t free_size);
 
 void finish_cache_collection(cache_t* cache);