diff --git a/src/ai/trolly/build.cpp b/src/ai/trolly/build.cpp
--- a/src/ai/trolly/build.cpp
+++ b/src/ai/trolly/build.cpp
@@ -3,7 +3,6 @@
 #include "../../stdafx.h"
 #include "../../openttd.h"
 #include "../../debug.h"
-#include "../../functions.h"
 #include "../../map.h"
 #include "../../road_map.h"
 #include "../../vehicle.h"