diff --git a/fast_quadratic_mesh_simplifier.h b/fast_quadratic_mesh_simplifier.h
index b69805b..b63d53e 100644
--- a/fast_quadratic_mesh_simplifier.h
+++ b/fast_quadratic_mesh_simplifier.h
@@ -28,7 +28,10 @@ SOFTWARE.
 #include "core/version.h"
 
 #if VERSION_MAJOR > 3
-#include "core/object/reference.h"
+#include "core/object/ref_counted.h"
+#ifndef Reference
+#define Reference RefCounted
+#endif
 #include "core/variant/array.h"
 #else
 #include "core/reference.h"