diff --git a/stead/goto.lua b/stead/goto.lua
index 0d3d932..4003128 100644
--- a/stead/goto.lua
+++ b/stead/goto.lua
@@ -160,7 +160,7 @@ function visited(w)
 	if not w then w = here() end
 	w = ref(w)
 	if w == nil then
-		return 0;
+		return nil;
 	end
 	if not isRoom(w) then
 		error ("Wrong parameter to visited.", 2);