diff --git a/lib/_http_agent.js b/lib/_http_agent.js
index e1cfa6d7fc9d17..fb8c2139314cbd 100644
--- a/lib/_http_agent.js
+++ b/lib/_http_agent.js
@@ -336,18 +336,17 @@ Agent.prototype.reuseSocket = function reuseSocket(socket, req) {
 };
 
 Agent.prototype.destroy = function destroy() {
-  const sets = [this.freeSockets, this.sockets];
-  for (var s = 0; s < sets.length; s++) {
-    var set = sets[s];
-    var keys = Object.keys(set);
-    for (var v = 0; v < keys.length; v++) {
-      var setName = set[keys[v]];
-      for (var n = 0; n < setName.length; n++) {
-        setName[n].destroy();
-      }
+  destroySockets(this.freeSockets);
+  destroySockets(this.sockets);
+};
+
+function destroySockets(sockets) {
+  for (const set of Object.values(sockets)) {
+    for (const socket of set) {
+      socket.destroy();
     }
   }
-};
+}
 
 function handleSocketCreation(agent, request, informRequest) {
   return function handleSocketCreation_Inner(err, socket) {