diff --git a/plinth/modules/letsencrypt/templates/letsencrypt.html b/plinth/modules/letsencrypt/templates/letsencrypt.html
index 4cf0f2efe..fc0c5f641 100644
--- a/plinth/modules/letsencrypt/templates/letsencrypt.html
+++ b/plinth/modules/letsencrypt/templates/letsencrypt.html
@@ -163,8 +163,7 @@
                   {% trans "Update config" %}</button>
               </noscript>
             {% else %}
-              <input type="checkbox" name="toggle_hooks" id="id_toggle_hooks"
-                     class="disabled"></input>
+              <input type="checkbox" name="toggle_hooks" id="id_toggle_hooks" disabled></input>
               <noscript>
                 <button class="btn btn-sm btn-default disabled" type="submit">
                   {% trans "Update config" %}</button>
@@ -210,8 +209,7 @@
                   {% trans "Update config" %}</button>
               </noscript>
             {% else %}
-              <input type="checkbox" name="ejabberd" id="ejabberd"
-                     class="disabled"></input>
+              <input type="checkbox" name="ejabberd" id="ejabberd" disabled></input>
               <noscript>
                 <button class="btn btn-sm btn-default disabled" type="submit">
                   {% trans "Update config" %}</button>