diff --git a/twake/backend/node/config/custom-environment-variables.json b/twake/backend/node/config/custom-environment-variables.json
index 975ef1c8..37291563 100644
--- a/twake/backend/node/config/custom-environment-variables.json
+++ b/twake/backend/node/config/custom-environment-variables.json
@@ -74,8 +74,20 @@
     }
   },
   "storage": {
+    "secret": "STORAGE_SECRET",
+    "iv": "STORAGE_SECRET_BASE_IV",
+    "type": "STORAGE_DRIVER",
     "local": {
       "path": "STORAGE_LOCAL_PATH"
+    },
+    "S3": {
+      "bucket": "STORAGE_S3_BUCKET",
+      "region": "STORAGE_S3_REGION",
+      "endPoint": "STORAGE_S3_ENDPOINT",
+      "port": "STORAGE_S3_PORT",
+      "useSSL": "STORAGE_S3_USE_SSL",
+      "accessKey": "STORAGE_S3_ACCESS_KEY",
+      "secretKey": "STORAGE_S3_SECRET_KEY"
     }
   },
   "message-queue": {