diff --git a/src/entt/entity/prototype.hpp b/src/entt/entity/prototype.hpp
index fea1647b6..d04684824 100644
--- a/src/entt/entity/prototype.hpp
+++ b/src/entt/entity/prototype.hpp
@@ -7,6 +7,7 @@
 #include <cstddef>
 #include <type_traits>
 #include <unordered_map>
+#include "../config/config.h"
 #include "registry.hpp"