diff --git a/core/modules/locale/locale.api.php b/core/modules/locale/locale.api.php
index 4683a18..9aabb0e 100644
--- a/core/modules/locale/locale.api.php
+++ b/core/modules/locale/locale.api.php
@@ -6,47 +6,9 @@
  */
 
 /**
- * @addtogroup hooks
+ * @defgroup interface_translation_properties Interface translation properties
  * @{
- */
-
-/**
- * Alter the list of projects to be updated by locale's interface translation.
- *
- * Locale module attempts to update the translation of those modules returned
- * by update_get_projects(). Using this hook the data returned by
- * update_get_projects() can be altered or extended.
- *
- * Modules or distributions that use a dedicated translation server should use
- * this hook to specify the translation sever parameters. These parameters are:
- * - "interface translation server pattern": URL of the .po translation files
- *   used to download the files from. The URL contains tokens which will be
- *   replaced by appropriate values.
- * The following tokens are available for the server pattern:
- * - "%core": Core version. Value example: "8.x".
- * - "%project": Project name. Value examples: "drupal", "media_gallery".
- * - "%version": Project version release. Value examples: "8.1", "8.x-1.0".
- * - "%language": Language code. Value examples: "fr", "pt-pt".
- *
- * @param array $projects
- *   Project data as returned by update_get_projects().
  *
- * @see locale_project_list().
- */
-function hook_locale_translation_projects_alter(&$projects) {
-  // The translations are located at a custom translation sever.
-  $projects['existing_project'] = array(
-    'info' => array(
-      'interface translation server pattern' => 'http://example.com/files/translations/%core/%project/%project-%version.%language.po',
-    ),
-  );
-}
-
-/**
- * @} End of "addtogroup hooks".
- */
-
-/**
  * .info file properties for interface translation settings.
  *
  * Modules hosted on drupal.org, a project definition is automatically added to
@@ -103,4 +65,47 @@ function hook_locale_translation_projects_alter(&$projects) {
  * - "%project": Project name. Value examples: "drupal", "media_gallery".
  * - "%version": Project version release. Value examples: "8.1", "8.x-1.0".
  * - "%language": Language code. Value examples: "fr", "pt-pt".
+ *
+ * @} End of "defgroup interface_translation_properties".
+ */
+
+/**
+ * @addtogroup hooks
+ * @{
+ */
+
+/**
+ * Alter the list of projects to be updated by locale's interface translation.
+ *
+ * Locale module attempts to update the translation of those modules returned
+ * by update_get_projects(). Using this hook the data returned by
+ * update_get_projects() can be altered or extended.
+ *
+ * Modules or distributions that use a dedicated translation server should use
+ * this hook to specify the interface translation server pattern.
+ * - "interface translation server pattern": URL of the .po translation files
+ *   used to download the files from. The URL contains tokens which will be
+ *   replaced by appropriate values.
+ * The following tokens are available for the server pattern:
+ * - "%core": Core version. Value example: "8.x".
+ * - "%project": Project name. Value examples: "drupal", "media_gallery".
+ * - "%version": Project version release. Value examples: "8.1", "8.x-1.0".
+ * - "%language": Language code. Value examples: "fr", "pt-pt".
+ *
+ * @param array $projects
+ *   Project data as returned by update_get_projects().
+ *
+ * @see locale_project_list().
+ */
+function hook_locale_translation_projects_alter(&$projects) {
+  // The translations are located at a custom translation sever.
+  $projects['existing_project'] = array(
+    'info' => array(
+      'interface translation server pattern' => 'http://example.com/files/translations/%core/%project/%project-%version.%language.po',
+    ),
+  );
+}
+
+/**
+ * @} End of "addtogroup hooks".
  */