diff --git a/ai.c b/ai.c
--- a/ai.c
+++ b/ai.c
@@ -1490,8 +1490,6 @@ static void AiStateWantNewRoute(Player *
 
 	i = 200;
 	for(;;) {
-		byte dis;
-
 		r = (uint16)Random();
 		
 		if (r < 0x7626) {