diff --git a/index.js b/index.js
index 8ab64b4..3622820 100644
--- a/index.js
+++ b/index.js
@@ -1,7 +1,6 @@
 'use strict';
 const ansiRegex = require('ansi-regex');
 
-// Removes the `g` flag
-const regex = new RegExp(ansiRegex().source);
+const regex = ansiRegex({onlyFirst: true});
 
 module.exports = string => regex.test(string);