diff --git a/src/msw/colour.cpp b/src/msw/colour.cpp
index d537b88849..5ef30bb4d0 100644
--- a/src/msw/colour.cpp
+++ b/src/msw/colour.cpp
@@ -18,6 +18,7 @@
 
 #include "wx/gdicmn.h"
 #include "wx/msw/private.h"
+#include "wx/colour.h"
 
 #include <string.h>