diff --git a/core/modules/language/language.module b/core/modules/language/language.module
index 91163f7ce076e6c3fe17fc83c09ae329c03b5a66..c1b01205afaeb7c1f1d87261f6f9ec635e25d58f 100644
--- a/core/modules/language/language.module
+++ b/core/modules/language/language.module
@@ -272,6 +272,8 @@ function language_get_default_langcode($entity_type, $bundle) {
  *
  * @deprecated in Drupal 8.0.x-dev, will be removed before Drupal 9.0.0.
  *   Use \Drupal::config('language.negotiation')->get('url.prefixes') instead.
+ *
+ * @see https://www.drupal.org/node/2912748
  */
 function language_negotiation_url_prefixes() {
   return \Drupal::config('language.negotiation')->get('url.prefixes');
@@ -301,6 +303,8 @@ function language_negotiation_url_prefixes_update() {
  *
  * @deprecated in Drupal 8.0.x-dev, will be removed before Drupal 9.0.0.
  *   Use \Drupal::config('language.negotiation')->get('url.domains') instead.
+ *
+ * @see https://www.drupal.org/node/2912748
  */
 function language_negotiation_url_domains() {
   return \Drupal::config('language.negotiation')->get('url.domains');