--- a/src/ai/api/ai_tile.cpp	Thu Apr 24 23:29:01 2008 +0000
+++ b/src/ai/api/ai_tile.cpp	Thu Apr 24 23:39:18 2008 +0000
@@ -4,6 +4,7 @@
 
 #include "ai_tile.hpp"
 #include "ai_map.hpp"
+#include "../../openttd.h"
 #include "../../tile_map.h"
 #include "../../map_func.h"
 #include "../../variables.h"