diff --git a/addons/mail/static/src/components/message/message.js b/addons/mail/static/src/components/message/message.js
index b3efd700d4b..fee02e3baa5 100644
--- a/addons/mail/static/src/components/message/message.js
+++ b/addons/mail/static/src/components/message/message.js
@@ -169,12 +169,6 @@ export class Message extends Component {
     get messageView() {
         return this.messaging && this.messaging.models['MessageView'].get(this.props.localId);
     }
-    /**
-     * @returns {string}
-     */
-    get OPEN_CHAT() {
-        return this.env._t("Open chat");
-    }
 
     /**
      * Make this message viewable in its enclosing scroll environment (usually
diff --git a/addons/mail/static/src/components/message/message.xml b/addons/mail/static/src/components/message/message.xml
index ed6b6ea99ae..0c153d2612c 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: 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"/>
+                                <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 ? messageView.authorAvatarTitleText : ''" alt="Avatar"/>
                                 <t t-if="messageView.message.author and messageView.message.author.im_status">
                                     <PartnerImStatusIcon
                                         className="'o_Message_partnerImStatusIcon'"
diff --git a/addons/mail/static/src/models/message_view.js b/addons/mail/static/src/models/message_view.js
index b81f09ae843..3da42b18b48 100644
--- a/addons/mail/static/src/models/message_view.js
+++ b/addons/mail/static/src/models/message_view.js
@@ -107,6 +107,13 @@ registerModel({
                 ? insertAndReplace()
                 : clear();
         },
+        /**
+         * @private
+         * @returns {string}
+         */
+        _computeAuthorAvatarTitleText() {
+            return this.env._t("Open chat");
+        },
         /**
          * @private
          * @returns {string|FieldCommand}
@@ -168,6 +175,9 @@ registerModel({
             isCausal: true,
             readonly: true,
         }),
+        authorAvatarTitleText: attr({
+            compute: '_computeAuthorAvatarTitleText',
+        }),
         /**
          * States the component displaying this message view (if any).
          */