diff --git a/addons/mail/static/src/scss/mail_activity.scss b/addons/mail/static/src/scss/mail_activity.scss
index 6bede520855..6f00500fb08 100644
--- a/addons/mail/static/src/scss/mail_activity.scss
+++ b/addons/mail/static/src/scss/mail_activity.scss
@@ -30,7 +30,7 @@
 }
 
 /* list_activity widget */
-.o_list_view {
+.o_list_view, .o_legacy_list_view {
     .o_list_table tbody > tr {
         > td.o_data_cell.o_list_activity_cell {
             overflow: visible !important; // allow the activity dropdown to overflow