--- a/src/ai/trolly/shared.cpp	Sat Jan 12 13:36:22 2008 +0000
+++ b/src/ai/trolly/shared.cpp	Sat Jan 12 14:10:35 2008 +0000
@@ -5,6 +5,7 @@
 #include "../../debug.h"
 #include "../../map_func.h"
 #include "../../vehicle_base.h"
+#include "../../player_base.h"
 #include "trolly.h"
 
 int AiNew_GetRailDirection(TileIndex tile_a, TileIndex tile_b, TileIndex tile_c)