diff --git a/src/Util.js b/src/Util.js
index 9b348c2..4cec91a 100644
--- a/src/Util.js
+++ b/src/Util.js
@@ -23,7 +23,7 @@ module.exports = class Util {
     }
 
     static isYTPlaylistLink (query) {
-        return ytsr.default.validate(query, "PLAYLIST")
+        return ytsr.default.validate(query, 'PLAYLIST')
     }
 
     static isYTVideoLink (query) {