diff --git a/addons/mail/static/src/core_ui/message.xml b/addons/mail/static/src/core_ui/message.xml
index fc03bbf04bd..7bb56cd3048 100644
--- a/addons/mail/static/src/core_ui/message.xml
+++ b/addons/mail/static/src/core_ui/message.xml
@@ -149,7 +149,7 @@
                                     <button t-if="canAddReaction" class="btn px-1 py-0" tabindex="1" title="Add a Reaction" aria-label="Add a Reaction" t-ref="emoji-picker"><i class="fa fa-lg fa-smile-o"/></button>
                                     <button t-if="canReplyTo" class="btn px-1 py-0" t-on-click.stop="onClickReplyTo" tabindex="1" title="Reply" aria-label="Reply"><i class="fa fa-lg fa-reply"/></button>
                                     <button t-if="canToggleStar" class="btn px-1 py-0" t-on-click="() => messageService.toggleStar(props.message)" tabindex="0" title="Mark as Todo" aria-label="Mark as Todo"><i class="fa fa-lg" t-att-class="message.isStarred ? 'fa-star o-mail-Message-starred' : 'fa-star-o'"/></button>
-                                    <Dropdown t-if="editable or deletable or isInInbox or props.thread.model === 'discuss.channel'" onStateChanged="state => this.state.expandOptions = state.open" position="props.thread?.newestMessage === props.message ? 'top-start' : 'bottom-start'" togglerClass="`btn p-0 ${ state.expandOptions ? 'bg-200' : '' }`" menuClass="'d-flex flex-column py-0 o-mail-Message-moreMenu'" class="'d-flex'" title="expandText">
+                                    <Dropdown t-if="editable or deletable or isInInbox or props.thread?.model === 'discuss.channel'" onStateChanged="state => this.state.expandOptions = state.open" position="props.thread?.newestMessage === props.message ? 'top-start' : 'bottom-start'" togglerClass="`btn p-0 ${ state.expandOptions ? 'bg-200' : '' }`" menuClass="'d-flex flex-column py-0 o-mail-Message-moreMenu'" class="'d-flex'" title="expandText">
                                         <t t-set-slot="toggler">
                                             <i class="btn px-1 py-0 fa fa-lg fa-ellipsis-h" t-att-class="{ 'order-1': props.isInChatWindow }" tabindex="1"/>
                                         </t>