diff --git a/lib/debug.js b/lib/debug.js
index 4952110d..0b07aa1d 100644
--- a/lib/debug.js
+++ b/lib/debug.js
@@ -112,10 +112,10 @@ function debug(name) {
     var ms = curr - (prev[name] || curr);
     prev[name] = curr;
 
-    fmt = '  \033[9' + c + 'm' + name + ' '
-      + '\033[3' + c + 'm\033[90m'
-      + fmt + '\033[3' + c + 'm'
-      + ' +' + humanize(ms) + '\033[0m';
+    fmt = '  \u001b[9' + c + 'm' + name + ' '
+      + '\u001b[3' + c + 'm\u001b[90m'
+      + fmt + '\u001b[3' + c + 'm'
+      + ' +' + humanize(ms) + '\u001b[0m';
 
     console.error.apply(this, arguments);
   }