diff --git a/RELEASE-NOTES-1.37 b/RELEASE-NOTES-1.37
index cfdb7e5732b..f1eae705811 100644
--- a/RELEASE-NOTES-1.37
+++ b/RELEASE-NOTES-1.37
@@ -723,7 +723,7 @@ because of Phabricator reports.
   and ::whereUserNamePrefix()
 * Manually constructing a MovePage object, deprecated in 1.34,
   is now hard deprecated. Use MovePageFactory instead.
-* userCan hook has been deprecated. Use getUserPermissionsErrors or
+* userCan hook has been hard deprecated. Use getUserPermissionsErrors or
   getUserPermissionsErrorsExpensive instead.
 * Parser::mUser public access, Parser::getUser and ParserOptions::getUser were
   hard deprecated.
diff --git a/includes/Permissions/Hook/UserCanHook.php b/includes/Permissions/Hook/UserCanHook.php
index 6064c55c56c..a6886845716 100644
--- a/includes/Permissions/Hook/UserCanHook.php
+++ b/includes/Permissions/Hook/UserCanHook.php
@@ -9,7 +9,7 @@ use User;
  * This is a hook handler interface, see docs/Hooks.md.
  * Use the hook name "userCan" to register handlers implementing this interface.
  *
- * @stable to implement
+ * @deprecated since 1.37 use getUserPermissionsErrors or getUserPermissionsErrorsExpensive instead.
  * @ingroup Hooks
  */
 interface UserCanHook {