diff --git a/src/mmg/tab_input.cpp b/src/mmg/tab_input.cpp
index ef78bbcbf..334dbcae4 100644
--- a/src/mmg/tab_input.cpp
+++ b/src/mmg/tab_input.cpp
@@ -20,6 +20,7 @@
 
 #include "wx/wx.h"
 #include "wx/dnd.h"
+#include "wx/file.h"
 #include "wx/listctrl.h"
 #include "wx/notebook.h"
 #include "wx/statline.h"