diff --git a/test/entt/core/any.cpp b/test/entt/core/any.cpp
index bf6deeecb..09acfcfa4 100644
--- a/test/entt/core/any.cpp
+++ b/test/entt/core/any.cpp
@@ -16,6 +16,8 @@
 #include "../common/non_movable.h"
 
 struct empty {
+    empty() = default;
+
     empty(const empty &) = default;
     empty &operator=(const empty &) = default;