diff --git a/src/Form/RestApiDocSettingsForm.php b/src/Form/RestApiDocSettingsForm.php
index 92c9cd0..1e338a1 100644
--- a/src/Form/RestApiDocSettingsForm.php
+++ b/src/Form/RestApiDocSettingsForm.php
@@ -72,6 +72,13 @@ class RestApiDocSettingsForm extends ConfigFormBase {
   /**
    * {@inheritdoc}
    */
+  public function getEditableConfigNames() {
+    return array('rest_api_doc.settings');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
   public function buildForm(array $form, FormStateInterface $form_state) {
     $settings = $this->config('rest_api_doc.settings');
     $enabled_route_names = $settings->get('routes');