diff --git a/src/Entity/Form/GroupTypeForm.php b/src/Entity/Form/GroupTypeForm.php
index a55ce3d..202967e 100644
--- a/src/Entity/Form/GroupTypeForm.php
+++ b/src/Entity/Form/GroupTypeForm.php
@@ -238,7 +238,9 @@ class GroupTypeForm extends BundleEntityFormBase {
         $add_role_url = Url::fromRoute('entity.group_role.add_form', ['group_type' => $type->id()]);
         $t_args = ['@url' => $add_role_url->toString()];
         $description = $this->t('You do not have any custom group roles yet, <a href="@url">create one here</a>.', $t_args);
-        $form['creator_roles']['#description'] .= "<br /><em>$description</em>";
+        if (isset($form['creator_roles']['#description'])) {
+          $form['creator_roles']['#description'] .= "<br /><em>$description</em>";
+        }
       }
     }