--- a/src/ai/api/ai_object.cpp	Mon Mar 31 07:37:51 2008 +0000
+++ b/src/ai/api/ai_object.cpp	Mon Mar 31 07:50:27 2008 +0000
@@ -6,7 +6,7 @@
 #include "../../command_func.h"
 #include "../../network/network.h"
 #include "../../player_func.h"
-#include "../../signs.h" // for _new_sign_id
+#include "../../signs_func.h"
 #include "../../vehicle_func.h"
 #include "../ai.h"
 #include "../ai_threads.h"