diff --git a/include/wx/motif/ctrlsub.h b/include/wx/motif/ctrlsub.h
index dfa0915e6b..cc417f9f80 100644
--- a/include/wx/motif/ctrlsub.h
+++ b/include/wx/motif/ctrlsub.h
@@ -18,7 +18,7 @@
 // wxControlWithItems
 // ----------------------------------------------------------------------------
 
-class wxControlWithItems : public wxControlWithItemsGeneric
+class WXDLLIMPEXP_CORE wxControlWithItems : public wxControlWithItemsGeneric
 {
 public:
     wxControlWithItems() { }