diff --git a/test/entt/resource/resource_cache.cpp b/test/entt/resource/resource_cache.cpp
index d27c20c51..3d604d5a6 100644
--- a/test/entt/resource/resource_cache.cpp
+++ b/test/entt/resource/resource_cache.cpp
@@ -6,6 +6,7 @@
 #include <entt/core/hashed_string.hpp>
 #include <entt/resource/cache.hpp>
 #include <entt/resource/loader.hpp>
+#include <entt/resource/resource.hpp>
 #include "../common/throwing_allocator.hpp"
 
 struct broken_tag {};