diff --git a/back/methods/chat/send.js b/back/methods/chat/send.js
index c36178b0f..2b00df727 100644
--- a/back/methods/chat/send.js
+++ b/back/methods/chat/send.js
@@ -46,6 +46,7 @@ module.exports = Self => {
         }).catch(async error => {
             if (error.statusCode === 401 && !this.resendAttempted) {
                 this.resendAttempted = true;
+                this.auth = null;
 
                 return sendMessage(sender, channel, message);
             }