diff --git a/web/ui/templates/alerts.html b/web/ui/templates/alerts.html
index c2beded10..216d99c5a 100644
--- a/web/ui/templates/alerts.html
+++ b/web/ui/templates/alerts.html
@@ -43,6 +43,12 @@
           {{end}}
         </td>
       </tr>
+    {{else}}
+      <tr class="alert_header">
+        <td>
+            No alerting rules defined
+        </td>
+      </tr>
     {{end}}
     </tbody>
   </table>