diff --git a/config/tempo/tempo.yml b/config/tempo/tempo.yml
index b6754e5..8a271e9 100644
--- a/config/tempo/tempo.yml
+++ b/config/tempo/tempo.yml
@@ -45,7 +45,7 @@ storage:
       bucket: tempo                    # how to store data in s3
       endpoint: minio:9000
       access_key: ${MINIO_ROOT_USER}
-      secret_key: ${MINIO_ROOT_USER}
+      secret_key: ${MINIO_ROOT_PASSWORD}
       insecure: true
 
 overrides:
diff --git a/docker-compose.yml b/docker-compose.yml
index 619e670..e28cadb 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -103,6 +103,9 @@ services:
     profiles: ["trace"]
     image: grafana/tempo:latest
     container_name: tempo
+    environment:
+      - MINIO_ROOT_PASSWORD
+      - MINIO_ROOT_USER
     ports:
       - "3200:3200"   # tempo
       - "4317:4317"  # otlp grpc