--- ui/main_dlg.cpp.orig	2018-03-02 05:46:44 UTC
+++ ui/main_dlg.cpp
@@ -28,6 +28,7 @@
 #include <wx+/image_resources.h>
 #include "cfg_grid.h"
 #include "version_check.h"
+#include "version_check_impl.h"
 #include "gui_status_handler.h"
 #include "small_dlgs.h"
 #include "progress_indicator.h"