diff --git a/src/msw/main.cpp b/src/msw/main.cpp
index 4676a2d241..7abc2842de 100644
--- a/src/msw/main.cpp
+++ b/src/msw/main.cpp
@@ -27,6 +27,7 @@
 #ifndef WX_PRECOMP
     #include "wx/event.h"
     #include "wx/app.h"
+    #include "wx/utils.h"
 #endif //WX_PRECOMP
 
 #include "wx/cmdline.h"