diff --git a/src/functions.php b/src/functions.php
index 6eef223..c05279c 100755
--- a/src/functions.php
+++ b/src/functions.php
@@ -29,7 +29,7 @@ function app(): Leaf\App
      */
     function _env($key, $default = null)
     {
-        $env = array_merge(getenv() ?? [], $_ENV ?? []);
+        $env = array_merge($_ENV ?? []);
 
         return $env[$key] ??= $default;
     }