diff --git a/src/WAConnection/3.Connect.ts b/src/WAConnection/3.Connect.ts
index 898656d..c38d17f 100644
--- a/src/WAConnection/3.Connect.ts
+++ b/src/WAConnection/3.Connect.ts
@@ -182,7 +182,7 @@ export class WAConnection extends Base {
             const timestamp = message.slice(1, message.length).toString ('utf-8')
             this.lastSeen = new Date(parseInt(timestamp))
         } else {
-            const decrypted = Utils.decryptWA (message, this.authInfo.macKey, this.authInfo.encKey, new Decoder())
+            const decrypted = Utils.decryptWA (message, this.authInfo?.macKey, this.authInfo?.encKey, new Decoder())
             if (!decrypted) return
             
             const [messageTag, json] = decrypted