diff --git a/composer.json b/composer.json
index e7973f8de5da057d510c349a4b0ec1784a85b346..00c2bd06a0883c999cebf1e6b0ac1ae2d978fd69 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
     "psr/container": "~1.0"
   },
   "autoload": {
-    "file": [
+    "files": [
       "DtaContainer.php"
     ]
   }