diff --git a/request.js b/request.js
index b71ed368a..418e31ed9 100644
--- a/request.js
+++ b/request.js
@@ -911,7 +911,7 @@ Request.prototype.getNewAgent = function ({agentIdleTimeout}) {
   let agent = self.pool[poolKey]
   
   // generate a new agent for this setting if none yet exists
-  if (!agent || (typeof agentIdleTimeout === 'number' && (agent.lastUsedAt ?? 0) + agentIdleTimeout < Date.now())) {
+  if (!agent || (typeof agentIdleTimeout === 'number' && (agent.lastUsedAt || 0) + agentIdleTimeout < Date.now())) {
     agent = self.pool[poolKey] = new Agent(options)
     // properly set maxSockets on new agents
     if (self.pool.maxSockets) {
diff --git a/tests/test-agentIdleTimeout.js b/tests/test-agentIdleTimeout.js
index 8668f704c..3c105fc7e 100644
--- a/tests/test-agentIdleTimeout.js
+++ b/tests/test-agentIdleTimeout.js
@@ -3,7 +3,6 @@
 var server = require('./server')
 var request = require('../index')
 var tape = require('tape')
-const { response } = require('har-validator')
 
 var s