diff --git a/luci-theme-argon/htdocs/luci-static/argon/css/cascade.css b/luci-theme-argon/htdocs/luci-static/argon/css/cascade.css
index d10dc59..81b7ee3 100644
--- a/luci-theme-argon/htdocs/luci-static/argon/css/cascade.css
+++ b/luci-theme-argon/htdocs/luci-static/argon/css/cascade.css
@@ -1863,6 +1863,21 @@ td>table>tbody>tr>td,
   border-bottom: .18751rem solid var(--primary)
 }
 
+.cbi-tab-disabled[data-errors]::after {
+  content: attr(data-errors);
+  background: #c43c35;
+  color: #fff;
+  height: 16px;
+  min-width: 16px;
+  border-radius: 8px;
+  text-align: center;
+  margin: 0 5px 0 0;
+  padding: 2px 2px 2px 2px;
+  display: inline-flex;
+  flex-direction: column;
+  justify-content: center;
+}
+
 .cbi-tabmenu {
   color: white;
   padding: .5rem 1rem 0 1rem;