diff --git a/composer.json b/composer.json
index 058e576..079e068 100644
--- a/composer.json
+++ b/composer.json
@@ -6,6 +6,7 @@
         "php": ">=7.4"
     },
     "autoload": {
-        "classmap": ["config.inc.php", "msgpack/msgpack_custom.inc.php"]
+        "files": ["config.inc.php"],
+        "classmap": ["msgpack/msgpack_custom.inc.php"]
     }
 }