diff --git a/lib/request/httpsProxyAgentMod.js b/lib/request/httpsProxyAgentMod.js
index c57c1bc..370ef97 100644
--- a/lib/request/httpsProxyAgentMod.js
+++ b/lib/request/httpsProxyAgentMod.js
@@ -4,7 +4,7 @@ export class HttpsProxyAgent extends HttpsProxyAgentOrig.HttpsProxyAgent {
   constructor (opts) {
     super(opts)
     this.tlsConnectionOptions = opts.tls
-    const callback = this.callback.bind(this)
-    this.callback = (req, opts) => callback(req, Object.assign(opts, this.tlsConnectionOptions))
+    const connect = this.connect.bind(this)
+    this.connect = (req, opts) => connect(req, Object.assign(opts, this.tlsConnectionOptions))
   }
 }