diff --git a/docker-compose.yml b/docker-compose.yml
index 1cb3f6f..3436edd 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -61,7 +61,7 @@ services:
       S3_ACCESS_KEY: ${S3_ACCESS_KEY}
       S3_SECRET_KEY: ${S3_SECRET_KEY}
       S3_REGION: ${S3_REGION:-us-east-1}
-      MAM_API_URL: ${MAM_API_URL}
+      MAM_API_URL: ${MAM_API_URL:-http://mam-api:3000}
     networks:
       - wild-dragon