1 files changed, 1 insertions, 0 deletions
diff --git a/engine.c b/engine.c
index 1c4f544b3..aefa407d8 100644
--- a/engine.c
+++ b/engine.c
@@ -1,6 +1,7 @@
 #include "stdafx.h"
 #include "openttd.h"
 #include "debug.h"
+#include "functions.h"
 #include "table/strings.h"
 #include "engine.h"
 #include "table/engines.h"