diff --git a/addons/mail/static/src/models/chatter/chatter.js b/addons/mail/static/src/models/chatter/chatter.js
index 61757004a91..de0637f07aa 100644
--- a/addons/mail/static/src/models/chatter/chatter.js
+++ b/addons/mail/static/src/models/chatter/chatter.js
@@ -50,6 +50,9 @@ function factory(dependencies) {
         }
 
         async refreshActivities() {
+            if (!this.hasActivities) {
+                return;
+            }
             if (!this.thread || this.thread.isTemporary) {
                 this.update({ activities: [['unlink-all']] });
                 return;