diff --git a/include/wx/bmpcbox.h b/include/wx/bmpcbox.h
index dd69525741..a5b9beeedb 100644
--- a/include/wx/bmpcbox.h
+++ b/include/wx/bmpcbox.h
@@ -17,6 +17,7 @@
 #if wxUSE_BITMAPCOMBOBOX
 
 #include "wx/bitmap.h"
+#include "wx/dynarray.h"
 
 class WXDLLIMPEXP_FWD_CORE wxWindow;
 class WXDLLIMPEXP_FWD_CORE wxItemContainer;