diff --git a/lib/client.js b/lib/client.js
index 0f99e36..4c8bba9 100644
--- a/lib/client.js
+++ b/lib/client.js
@@ -148,6 +148,8 @@ export default class Client extends EventTarget {
 	constructor(params) {
 		super();
 
+		this.handleOneline = this.handleOnline.bind(this);
+
 		this.params = { ...this.params, ...params };
 
 		this.reconnect();