diff --git a/api-rest/index.php b/api-rest/index.php
index 1217d8c..2f58b4b 100644
--- a/api-rest/index.php
+++ b/api-rest/index.php
@@ -20,7 +20,7 @@
     // ------
     //$ini_array= parse_ini_file("config.ini");
 
-    $dsn = "mysql:host=".getenv("DB_SERVER").";port=3036;dbname=". getenv("MYSQL_DATABASE");
+    $dsn = "mysql:host=db;port=3036;dbname=". getenv("MYSQL_DATABASE");
     $username = getenv("MYSQL_USER_TOM");
     $password = getenv("MYSQL_PASSWORD_TOM");