diff -r b4a664574e8f -r 14b27357d353 disaster_cmd.c
--- a/disaster_cmd.c	Wed Mar 08 07:50:26 2006 +0000
+++ b/disaster_cmd.c	Wed Mar 08 08:16:31 2006 +0000
@@ -665,7 +665,7 @@
 		return;
 	}
 
-	v->direction = (v->direction + (GB(Random(), 0, 1) ? 2 : -2)) & 7;
+	v->direction = ChangeDir(v->direction, GB(Random(), 0, 1) ? DIRDIFF_90RIGHT : DIRDIFF_90LEFT);
 }