diff --git a/addons/mail/static/src/components/message/message.js b/addons/mail/static/src/components/message/message.js
index f5e97322185..85732388e8c 100644
--- a/addons/mail/static/src/components/message/message.js
+++ b/addons/mail/static/src/components/message/message.js
@@ -95,28 +95,6 @@ export class Message extends Component {
         return this.messageView.message.date.format(getLangDatetimeFormat());
     }
 
-    /**
-     * Determines whether author open chat feature is enabled on message.
-     *
-     * @returns {boolean}
-     */
-    get hasAuthorOpenChat() {
-        if (this.messaging.currentGuest) {
-            return false;
-        }
-        if (!this.messageView.message.author) {
-            return false;
-        }
-        if (
-            this.messageView.threadView &&
-            this.messageView.threadView.thread &&
-            this.messageView.threadView.thread.correspondent === this.messageView.message.author
-        ) {
-            return false;
-        }
-        return true;
-    }
-
     /**
      * Whether the message is "active", ie: hovered or clicked, and should
      * display additional things (date in sidebar, message actions, etc.)
@@ -406,7 +384,7 @@ export class Message extends Component {
      */
     _onClickAuthorAvatar(ev) {
         markEventHandled(ev, 'Message.ClickAuthorAvatar');
-        if (!this.hasAuthorOpenChat) {
+        if (!this.messageView.hasAuthorOpenChat) {
             return;
         }
         this.messageView.message.author.openChat();
diff --git a/addons/mail/static/src/components/message/message.xml b/addons/mail/static/src/components/message/message.xml
index b50bb7d5655..93713fe4687 100644
--- a/addons/mail/static/src/components/message/message.xml
+++ b/addons/mail/static/src/components/message/message.xml
@@ -29,7 +29,7 @@
                     <div class="o_Message_sidebar" t-att-class="{ 'o-message-squashed align-items-start': messageView.isSquashed }">
                         <t t-if="!messageView.isSquashed">
                             <div class="o_Message_authorAvatarContainer o_Message_sidebarItem">
-                                <img class="o_Message_authorAvatar rounded-circle" t-att-class="{ o_Message_authorRedirect: hasAuthorOpenChat, o_redirect: hasAuthorOpenChat }" t-att-src="messageView.message.avatarUrl" t-on-click="_onClickAuthorAvatar" t-att-title="hasAuthorOpenChat ? OPEN_CHAT : ''" alt="Avatar"/>
+                                <img class="o_Message_authorAvatar rounded-circle" t-att-class="{ o_Message_authorRedirect: messageView.hasAuthorOpenChat, o_redirect: messageView.hasAuthorOpenChat }" t-att-src="messageView.message.avatarUrl" t-on-click="_onClickAuthorAvatar" t-att-title="messageView.hasAuthorOpenChat ? OPEN_CHAT : ''" alt="Avatar"/>
                                 <t t-if="messageView.message.author and messageView.message.author.im_status">
                                     <PartnerImStatusIcon
                                         className="'o_Message_partnerImStatusIcon'"
@@ -37,7 +37,7 @@
                                             'o-message-selected': isSelected,
                                             'o_Message_partnerImStatusIcon-mobile': messaging.device.isMobile,
                                         }"
-                                        hasOpenChat="hasAuthorOpenChat"
+                                        hasOpenChat="messageView.hasAuthorOpenChat"
                                         partnerLocalId="messageView.message.author.localId"
                                     />
                                 </t>
diff --git a/addons/mail/static/src/models/message_view.js b/addons/mail/static/src/models/message_view.js
index cc56bfd5c75..b81f09ae843 100644
--- a/addons/mail/static/src/models/message_view.js
+++ b/addons/mail/static/src/models/message_view.js
@@ -117,6 +117,26 @@ registerModel({
             }
             return clear();
         },
+        /**
+         * @private
+         * @returns {boolean}
+         */
+        _computeHasAuthorOpenChat() {
+            if (this.messaging.currentGuest) {
+                return false;
+            }
+            if (!this.message.author) {
+                return false;
+            }
+            if (
+                this.threadView &&
+                this.threadView.thread &&
+                this.threadView.thread.correspondent === this.message.author
+            ) {
+                return false;
+            }
+            return true;
+        },
         /**
          * @private
          * @returns {FieldCommand}
@@ -183,6 +203,12 @@ registerModel({
             compute: '_computeExtraClass',
             default: '',
         }),
+        /**
+         * Determines whether author open chat feature is enabled on message.
+         */
+        hasAuthorOpenChat: attr({
+            compute: '_computeHasAuthorOpenChat',
+        }),
         /**
          * id of the current timeout that will reset isHighlighted to false.
          */