diff --git a/composer.json b/composer.json
index cae45e2..cdaaadc 100644
--- a/composer.json
+++ b/composer.json
@@ -27,5 +27,17 @@
     "psr-4": {
       "Ulmus\\Api\\Weather\\": "src/"
     }
+  },
+  "extra": {
+    "lean": {
+      "autoload": {
+        "definitions": [
+          "meta/definitions/storage.php"
+        ],
+        "config": [
+          "meta/config.php"
+        ]
+      }
+    }
   }
 }