diff --git a/src/WAConnection/1.Validation.ts b/src/WAConnection/1.Validation.ts
index 1afdfb9..d119bb2 100644
--- a/src/WAConnection/1.Validation.ts
+++ b/src/WAConnection/1.Validation.ts
@@ -49,7 +49,7 @@ export class WAConnection extends Base {
             else json.push ('takeover')
             // send login every 10s
             const sendLoginReq = () => {
-                if (this.conn.readyState !== this.conn.OPEN) {
+                if (this.conn?.readyState !== this.conn.OPEN) {
                     this.logger.warn('Received login timeout req when WS not open, ignoring...')
                     return
                 }