diff --git a/src/Very/Application.php b/src/Very/Application.php
index b4cbb6e..c723cce 100644
--- a/src/Very/Application.php
+++ b/src/Very/Application.php
@@ -268,11 +268,11 @@ public function set($key, $value)
     /**
      * alias.
      *
-     * @param $key
+     * @param string $key
      *
      * @return mixed
      */
-    public function get($key)
+    public function get(string $key)
     {
         return $this->__get($key);
     }