diff --git a/setup/templates/macros.html b/setup/templates/macros.html
index 4af20c4e..17cef872 100644
--- a/setup/templates/macros.html
+++ b/setup/templates/macros.html
@@ -12,7 +12,7 @@
 {% macro radio(name, value, emph, text, current) %}
   <div class="radio">
     <label>
-      <input type="radio" name="{{ name }}" value="{{ value }}"{% if current == value %} checked="checked"{% endif %}>
+      <input type="radio" name="{{ name }}" value="{{ value }}"{% if current == value %} checked="checked"{% endif %} required="required">
       {% if emph %}
       <strong>{{ emph }}</strong>,
       {% endif %}