1 files changed, 1 insertions, 0 deletions

diff --git a/window.c b/window.c
index 5b0db975b..3dbb0fbe9 100644
--- a/window.c
+++ b/window.c
@@ -1,5 +1,6 @@
 #include "stdafx.h"
 #include "ttd.h"
+#include "debug.h"
 #include "map.h"
 #include "window.h"
 #include "gfx.h"