diff --git a/lib/readline.js b/lib/readline.js
index 4df60afce8b429..9b9a054fd66fb7 100644
--- a/lib/readline.js
+++ b/lib/readline.js
@@ -500,9 +500,7 @@ Interface.prototype._tabComplete = function(lastKeypressWasTab) {
       }
 
       // If there is a common prefix to all matches, then apply that portion.
-      var f = completions.filter(function completionFilter(e) {
-        if (e) return e;
-      });
+      var f = completions.filter((e) => e);
       var prefix = commonPrefix(f);
       if (prefix.length > completeOn.length) {
         self._insertString(prefix.slice(completeOn.length));