diff --git a/src/Illuminate/Support/Traits/Macroable.php b/src/Illuminate/Support/Traits/Macroable.php
index b590527f863f..ff0d534f95b3 100644
--- a/src/Illuminate/Support/Traits/Macroable.php
+++ b/src/Illuminate/Support/Traits/Macroable.php
@@ -34,6 +34,7 @@ public static function macro($name, $macro)
      *
      * @param  object  $mixin
      * @return void
+     * @throws \ReflectionException
      */
     public static function mixin($mixin)
     {