diff --git a/twake/backend/node/config/custom-environment-variables.json b/twake/backend/node/config/custom-environment-variables.json
index 2e9cafb7..37291563 100644
--- a/twake/backend/node/config/custom-environment-variables.json
+++ b/twake/backend/node/config/custom-environment-variables.json
@@ -75,11 +75,14 @@
   },
   "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",