diff --git a/app/assets/javascripts/app/views/generic/sidebar_tabs.jst.eco b/app/assets/javascripts/app/views/generic/sidebar_tabs.jst.eco
index 00dd0acb4..cadc8e0ce 100644
--- a/app/assets/javascripts/app/views/generic/sidebar_tabs.jst.eco
+++ b/app/assets/javascripts/app/views/generic/sidebar_tabs.jst.eco
@@ -13,7 +13,7 @@
 
 </div>
 <% end %>
-<div class="tabsSidebar-tabs vertical justified" style="margin-left: -<%- @scrollbarWidth %>px">
+<div class="tabsSidebar-tabs" style="margin-left: -<%- @scrollbarWidth %>px">
 <% for item in @items: %>
   <div class="tabsSidebar-tab" data-tab="<%= item.name %>">
     <%- @Icon(item.icon) %>
diff --git a/app/assets/javascripts/app/views/layout_ref/merge_customer_view.jst.eco b/app/assets/javascripts/app/views/layout_ref/merge_customer_view.jst.eco
index 787fc025f..9731720d1 100644
--- a/app/assets/javascripts/app/views/layout_ref/merge_customer_view.jst.eco
+++ b/app/assets/javascripts/app/views/layout_ref/merge_customer_view.jst.eco
@@ -912,7 +912,7 @@
       </div>
     </div>
 
-    <div class="tabsSidebar-tabs vertical justified">
+    <div class="tabsSidebar-tabs">
       <div class="tabsSidebar-tab is-changed" data-tab="ticket"></div>
 
       <div class="tabsSidebar-tab active" data-tab="customer"></div>
diff --git a/app/assets/javascripts/app/views/layout_ref/ticket_zoom.jst.eco b/app/assets/javascripts/app/views/layout_ref/ticket_zoom.jst.eco
index 92284fe6d..76611b2e7 100644
--- a/app/assets/javascripts/app/views/layout_ref/ticket_zoom.jst.eco
+++ b/app/assets/javascripts/app/views/layout_ref/ticket_zoom.jst.eco
@@ -627,7 +627,7 @@
         </ul>
       </div>
     </div>
-    <div class="tabsSidebar-tabs vertical justified">
+    <div class="tabsSidebar-tabs">
       <div class="tabsSidebar-tab active" data-tab="ticket">
         <%- @Icon('message') %>
       </div>
diff --git a/app/assets/stylesheets/zammad.scss b/app/assets/stylesheets/zammad.scss
index e2153e78c..5c7f0eb2d 100644
--- a/app/assets/stylesheets/zammad.scss
+++ b/app/assets/stylesheets/zammad.scss
@@ -4209,6 +4209,9 @@ footer {
   }
 
   .tabsSidebar-tabs {
+    display: flex;
+    flex-direction: column;
+    justify-content: center;
     position: absolute;
     left: -55px;
     top: 0;