diff --git a/composer.json b/composer.json
index 4cf41f6..b4b2357 100644
--- a/composer.json
+++ b/composer.json
@@ -9,6 +9,6 @@
     ],
     "require": {},
     "autoload": {
-        "classmap": "min/lib/"
+        "classmap": ["min/lib/"]
     }
 }