diff --git a/ikoene/marvel-api-bundle/0.2/manifest.json b/ikoene/marvel-api-bundle/0.2/manifest.json
index 28a776b2..e27ee98c 100644
--- a/ikoene/marvel-api-bundle/0.2/manifest.json
+++ b/ikoene/marvel-api-bundle/0.2/manifest.json
@@ -3,6 +3,7 @@
         "Ikoene\\MarvelApiBundle\\IkoeneMarvelApiBundle": ["all"]
     },
     "env": {
+        "#1": "Get your API key from https://developer.marvel.com",
         "MARVEL_PUBLIC_API_KEY": "...",
         "MARVEL_PRIVATE_API_KEY": "..."
     }