diff --git a/src/msw/toolbar.cpp b/src/msw/toolbar.cpp
index 1a40d6f65d..8f03aee595 100644
--- a/src/msw/toolbar.cpp
+++ b/src/msw/toolbar.cpp
@@ -39,6 +39,7 @@
     #include "wx/dcmemory.h"
     #include "wx/control.h"
     #include "wx/choice.h"
+    #include "wx/combobox.h"
     #include "wx/app.h"         // for GetComCtl32Version
     #include "wx/image.h"
     #include "wx/stattext.h"