diff --git a/lib/salet.coffee b/lib/salet.coffee
index d5a847b..72c7a70 100644
--- a/lib/salet.coffee
+++ b/lib/salet.coffee
@@ -304,7 +304,11 @@ class Salet
     # Go back N rooms. It's not an UNDO.
     # Also, steps = 1 is the current room
     @goBack = (steps = 2) =>
-      @processClick(@progress.path[@progress.path.length - steps])
+      if @progress.path.length > steps
+        location = @progress.path[@progress.path.length - steps]
+      else
+        location = @start
+      @processClick(location)
 
     # Transition between rooms.
     @doTransitionTo = (newRoomId) =>