diff --git a/application/helpers/env_helper.php b/application/helpers/env_helper.php
index 347957a3..1ce442cb 100644
--- a/application/helpers/env_helper.php
+++ b/application/helpers/env_helper.php
@@ -24,6 +24,8 @@ if ( ! function_exists('env'))
      * @param mixed $default Default value in case the requested variable has no value.
      *
      * @return mixed
+     *
+     * @throws InvalidArgumentException
      */
     function env(string $key, $default = NULL)
     {