diff --git a/addons/mail/static/src/scss/mail_activity.scss b/addons/mail/static/src/scss/mail_activity.scss
index ea4b19842f9..2b31623260f 100644
--- a/addons/mail/static/src/scss/mail_activity.scss
+++ b/addons/mail/static/src/scss/mail_activity.scss
@@ -154,7 +154,7 @@
 .o_list_view {
     .o_list_table tbody > tr {
         > td.o_data_cell.o_list_activity_cell {
-            overflow: visible; // allow the activity dropdown to overflow
+            overflow: visible !important; // allow the activity dropdown to overflow
             .o_mail_activity {
                 display: flex;
                 max-width: 275px;