diff --git a/site/plugins/form/app/Controllers/FormController.php b/site/plugins/form/app/Controllers/FormController.php
index 2cd6b928..f6230800 100644
--- a/site/plugins/form/app/Controllers/FormController.php
+++ b/site/plugins/form/app/Controllers/FormController.php
@@ -410,7 +410,7 @@ class FormController extends Controller
         $size  = isset($properties['size'])  ? $this->sizes[$properties['size']] : $this->sizes['12'];
         $h     = isset($properties['h'])     ? $properties['h'] : 3;
         $id    = isset($properties['id'])    ? $properties['id'] : $field_id;
-        $class = isset($properties['class']) ? $properties['class'] . 'text-3xl border-b border-black' : 'text-3xl border-b border-black';
+        $class = isset($properties['class']) ? $properties['class'] : '';
 
         return $this->flextype['view']->fetch('plugins/form/templates/fields/heading/field.html', ['title' => $title, 'size' => $size, 'h' => $h, 'id' => $id, 'class' => $class]);
     }
diff --git a/site/plugins/form/templates/fields/heading/field.html b/site/plugins/form/templates/fields/heading/field.html
index 7b4b8beb..b4935382 100644
--- a/site/plugins/form/templates/fields/heading/field.html
+++ b/site/plugins/form/templates/fields/heading/field.html
@@ -1,3 +1,3 @@
 <div class="form-group {{ size }}">
-    <h{{ h }} id="{{ id }}" class="{{ class }}">{{ tr(title) }}</h{{ h }}>
+    <h{{ h }} id="{{ id }}" class="{{ class }} text-3xl border-b border-black">{{ tr(title) }}</h{{ h }}>
 </div>
\ No newline at end of file