diff --git a/internal/wisski/ingredient/barrel/barrel.env b/internal/wisski/ingredient/barrel/barrel.env
index 86c5d95..557330b 100644
--- a/internal/wisski/ingredient/barrel/barrel.env
+++ b/internal/wisski/ingredient/barrel/barrel.env
@@ -2,7 +2,7 @@ DATA_PATH=${DATA_PATH}
 RUNTIME_DIR=${RUNTIME_DIR}
 
 SLUG=${SLUG}
-HOSTNAME=${HOSTNAME}
+WISSKI_HOSTNAME=${HOSTNAME}
 HOST_RULE=${HOST_RULE}
 DOCKER_NETWORK_NAME=${DOCKER_NETWORK_NAME}
 
diff --git a/internal/wisski/ingredient/barrel/barrel/docker-compose.yml b/internal/wisski/ingredient/barrel/barrel/docker-compose.yml
index d0fcba2..4bb9b31 100644
--- a/internal/wisski/ingredient/barrel/barrel/docker-compose.yml
+++ b/internal/wisski/ingredient/barrel/barrel/docker-compose.yml
@@ -4,7 +4,7 @@ services:
   barrel:
     build: .
     restart: always
-    hostname: ${HOSTNAME}
+    hostname: ${WISSKI_HOSTNAME}
 
     # label it with the current slug
     labels: