diff --git a/include/wx/gtk/filepicker.h b/include/wx/gtk/filepicker.h
index 7b5a7da72e..cda74e3da1 100644
--- a/include/wx/gtk/filepicker.h
+++ b/include/wx/gtk/filepicker.h
@@ -183,6 +183,8 @@ public:    // used by the GTK callback only
     void UpdatePath(const char *gtkpath)
         { m_path = wxString::FromAscii(gtkpath); }
 
+    void GTKUpdatePath(const char *gtkpath);
+
 private:
     DECLARE_DYNAMIC_CLASS(wxDirButton)
 };