diff --git a/.env.sample b/.env.sample
index 166e409..8568bc9 100644
--- a/.env.sample
+++ b/.env.sample
@@ -60,6 +60,7 @@ SENTRY_DSN=
 # UPLOADS_S3_REGION=fr-par
 # UPLOADS_S3_HOST=s3.fr-par.scw.cloud
 # UPLOADS_S3_SCHEME=https://
+# UPLOADS_S3_URL=
 
 # Bonfire extensions configs:
 WEB_PUSH_SUBJECT=mailto:admin@example.com
diff --git a/compose.yml b/compose.yml
index fd6d2b8..d1a23fb 100644
--- a/compose.yml
+++ b/compose.yml
@@ -42,6 +42,7 @@ services:
       - UPLOADS_S3_REGION
       - UPLOADS_S3_HOST
       - UPLOADS_S3_SCHEME
+      - UPLOADS_S3_URL
     secrets: 
       - postgres_password
       - secret_key_base