diff --git a/Dockerfile b/Dockerfile
index c90c4e4..a98256e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,6 @@
 FROM alpine:3.20.0
 
+# this is the default, but just to be explicit
 USER root
 
 RUN apk --no-cache add btrfs-progs openssh borgbackup bash coreutils