diff --git a/src/gtk1/win_gtk.c b/src/gtk1/win_gtk.c
index bf272f17d8..c14edde8c7 100644
--- a/src/gtk1/win_gtk.c
+++ b/src/gtk1/win_gtk.c
@@ -13,7 +13,7 @@
 #define XCheckIfEvent XCHECKIFEVENT
 #endif
 
-#include "wx/defs.h"
+#include "wx/platform.h"
 #include "wx/gtk1/win_gtk.h"
 #include "gtk/gtksignal.h"
 #include "gtk/gtkprivate.h"