diff --git a/vendor/assets/javascripts/intense.coffee b/vendor/assets/javascripts/intense.coffee
index 0f7e308..0e6abfd 100644
--- a/vendor/assets/javascripts/intense.coffee
+++ b/vendor/assets/javascripts/intense.coffee
@@ -20,7 +20,7 @@ window.Intense = {
       else
         this
   useColors: true
-  moveBack: (count = 1) -> "\033[#{count}D"
+  moveBack: (count = 1) -> "\x33[#{count}D"
 }
 
 for method, code of Intense.methods