1 files changed, 1 insertions, 0 deletions
diff --git a/unix.c b/unix.c
index 6dcd70be9..758a2f355 100644
--- a/unix.c
+++ b/unix.c
@@ -1,5 +1,6 @@
 #include "stdafx.h"
 #include "openttd.h"
+#include "functions.h"
 #include "window.h"
 #include "string.h"
 #include "table/strings.h"