openAgent

1diff --git a/lib/agents.js b/lib/agents.js
2index 45ec59c4c13757379095131c4f0a5ea6f7284f45..0763b031e355a755ec6a26f98461aa3f63b8339b 100644
3--- a/lib/agents.js
4+++ b/lib/agents.js
5@@ -32,7 +32,7 @@ module.exports = class Agent extends AgentBase {
6   }
7 
8   get proxy () {
9-    return this.#proxy ? { url: this.#proxy } : {}
10+    return this.#proxy ? { url: this.#proxy.toString() } : {}
11   }
12 
13   #getProxy (options) {
14