diff --git a/include/wx/volume.h b/include/wx/volume.h
index 5bac8c1b6e..b179ca7675 100644
--- a/include/wx/volume.h
+++ b/include/wx/volume.h
@@ -117,7 +117,7 @@ enum wxFSIconType
 };
 
 // wxFSVolume adds GetIcon() to wxFSVolumeBase
-class wxFSVolume : public wxFSVolumeBase
+class WXDLLIMPEXP_CORE wxFSVolume : public wxFSVolumeBase
 {
 public:
     wxFSVolume() : wxFSVolumeBase() { InitIcons(); }