diff --git a/addons/mail/static/src/components/message/message.scss b/addons/mail/static/src/components/message/message.scss
index ed7de25a110..4a6db5101e1 100644
--- a/addons/mail/static/src/components/message/message.scss
+++ b/addons/mail/static/src/components/message/message.scss
@@ -86,8 +86,6 @@
 }
 
 // Used to hide buttons on rating emails in chatter
-// FIXME: should use a better approach for not having such buttons
-// in chatter of such messages, but keep having them in emails.
-.o_MessageView_content [summary~="o_mail_notification"] {
+.o_Chatter .o_MessageView_content [summary~="o_mail_notification"] {
     display: none;
 }