--- a/ai/trolly/trolly.c	Mon Aug 14 11:44:19 2006 +0000
+++ b/ai/trolly/trolly.c	Mon Aug 14 14:21:15 2006 +0000
@@ -35,6 +35,7 @@
 #include "../../gui.h"
 #include "../../depot.h"
 #include "../../vehicle.h"
+#include "../../date.h"
 #include "../ai.h"
 
 // This function is called after StartUp. It is the init of an AI