diff --git a/addons/mail/static/src/components/follower_subtype_list/follower_subtype_list.scss b/addons/mail/static/src/components/follower_subtype_list/follower_subtype_list.scss
deleted file mode 100644
index 82aef9fc974..00000000000
--- a/addons/mail/static/src/components/follower_subtype_list/follower_subtype_list.scss
+++ /dev/null
@@ -1,8 +0,0 @@
-// ------------------------------------------------------------------
-// Layout
-// ------------------------------------------------------------------
-
-.o_FollowerSubtypeList_subtypes {
-    display: flex;
-    flex-flow: column;
-}
diff --git a/addons/mail/static/src/components/follower_subtype_list/follower_subtype_list.xml b/addons/mail/static/src/components/follower_subtype_list/follower_subtype_list.xml
index 7e0bb7eb57f..b33db36489c 100644
--- a/addons/mail/static/src/components/follower_subtype_list/follower_subtype_list.xml
+++ b/addons/mail/static/src/components/follower_subtype_list/follower_subtype_list.xml
@@ -12,7 +12,7 @@
                         <i class="o_FollowerSubtypeList_closeButton close fa fa-times" aria-label="Close" t-on-click="_onClickCancel"/>
                     </header>
                     <main class="modal-body">
-                        <div class="o_FollowerSubtypeList_subtypes">
+                        <div class="o_FollowerSubtypeList_subtypes flex-column d-flex">
                             <t t-foreach="followerSubtypeList.followerSubtypeViews" t-as="followerSubtypeView" t-key="followerSubtypeView.localId">
                                 <FollowerSubtype
                                     className="'o_FollowerSubtypeList_subtype'"