diff --git a/admin/themes/default/template/configuration.tpl b/admin/themes/default/template/configuration.tpl
index 5af1c18c5..d3309e8a7 100644
--- a/admin/themes/default/template/configuration.tpl
+++ b/admin/themes/default/template/configuration.tpl
@@ -221,7 +221,7 @@ jQuery("input[name='mail_theme']").change(function() {
   <ul>
     <li>
       <label>
-        <input type="checkbox" name="activate_comments" id="activate_comments"{if ($comments.activate_comments)}checked="checked"{/if}>
+        <input type="checkbox" name="activate_comments" id="activate_comments"{if ($comments.activate_comments)} checked="checked"{/if}>
         {'Activate comments'|@translate}
       </label>
     </li>