diff --git a/bootstrap.docker-compose.yaml b/bootstrap.docker-compose.yaml
index 95632d6..3d79ccd 100644
--- a/bootstrap.docker-compose.yaml
+++ b/bootstrap.docker-compose.yaml
@@ -64,7 +64,7 @@ volumes:
   portainer:
     driver_opts:
       <<: *bind-volume
-      device: ${MOUNT_DIR?}/portainer
+      device: ${MOUNT_DIR?}/portainer/
   traefik:
     driver_opts:
       <<: *bind-volume