diff --git a/lib/events.js b/lib/events.js
index 4ee96024895f45..8cd9cd9582725c 100644
--- a/lib/events.js
+++ b/lib/events.js
@@ -382,10 +382,7 @@ EventEmitter.prototype.removeAllListeners =
 
       // emit removeListener for all listeners on all events
       if (arguments.length === 0) {
-        var keys = Object.keys(events);
-        var key;
-        for (i = 0; i < keys.length; ++i) {
-          key = keys[i];
+        for (const key of Object.keys(events)) {
           if (key === 'removeListener') continue;
           this.removeAllListeners(key);
         }