diff --git a/lib/querystring.js b/lib/querystring.js
index ba676d8c6d7fab..3a4d09bf78e848 100644
--- a/lib/querystring.js
+++ b/lib/querystring.js
@@ -109,7 +109,7 @@ function unescapeBuffer(s, decodeSpaces) {
 function qsUnescape(s, decodeSpaces) {
   try {
     return decodeURIComponent(s);
-  } catch (e) {
+  } catch {
     return QueryString.unescapeBuffer(s, decodeSpaces).toString();
   }
 }