diff --git a/tests/any/anytest.cpp b/tests/any/anytest.cpp
index 74a9d9cd05..792f1576a8 100644
--- a/tests/any/anytest.cpp
+++ b/tests/any/anytest.cpp
@@ -17,6 +17,7 @@
 
 #include "wx/any.h"
 #include "wx/datetime.h"
+#include "wx/object.h"
 
 #include <math.h>