diff --git a/lib/utils.js b/lib/utils.js
index 358bf0c..18018f4 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -183,7 +183,7 @@ var utils = {
       .replace(/\\/g, '\\\\')  // backslash
       .replace(/\//g, '\\/')   // closing slash
       .replace(/\]/g, '\\]')   // closing bracket
-      .replace(/^/g,  '\\^')   // caret
+      .replace(/\^/g, '\\^')   // caret
       .replace(/-/g,  '\\-')   // dash
       .replace(/\0/g, '\\0')   // null
       .replace(/\t/g, '\\t')   // horizontal tab