diff --git a/include/wx/utils.h b/include/wx/utils.h
index 4588479e98..dbb87cd0aa 100644
--- a/include/wx/utils.h
+++ b/include/wx/utils.h
@@ -20,6 +20,7 @@
 #include "wx/filefn.h"
 #include "wx/hashmap.h"
 #include "wx/versioninfo.h"
+#include "wx/windowid.h"
 #include "wx/meta/implicitconversion.h"
 
 #if wxUSE_GUI