diff --git a/environments/production.json b/environments/production.json
index bf6d1f6..16f5811 100644
--- a/environments/production.json
+++ b/environments/production.json
@@ -21,7 +21,7 @@
       }
     },
     "kosmos-mastodon": {
-      "s3_endpoint": "localhost:3900",
+      "s3_endpoint": "http://localhost:3900",
       "s3_region": "garage",
       "s3_bucket": "kosmos-social",
       "s3_alias_host": "s3.kosmos.social",