diff --git a/src/Illuminate/Collections/Arr.php b/src/Illuminate/Collections/Arr.php
index e6586edd7f95..c6bd8561a038 100644
--- a/src/Illuminate/Collections/Arr.php
+++ b/src/Illuminate/Collections/Arr.php
@@ -64,6 +64,9 @@ public static function add($array, $key, $value)
     /**
      * Get an array item from an array using "dot" notation.
      *
+     * @param  \ArrayAccess|array  $array
+     * @param  string|int|null  $key
+     * @param  array|null  $default
      * @return array
      *
      * @throws \InvalidArgumentException