diff --git a/lib/repl.js b/lib/repl.js
index 7f01a426beeacf..2770478e83ce2a 100644
--- a/lib/repl.js
+++ b/lib/repl.js
@@ -1021,8 +1021,7 @@ function complete(line, callback) {
 
   // REPL commands (e.g. ".break").
   var filter;
-  var match = null;
-  match = line.match(/^\s*\.(\w*)$/);
+  let match = line.match(/^\s*\.(\w*)$/);
   if (match) {
     completionGroups.push(Object.keys(this.commands));
     completeOn = match[1];