diff --git a/Dockerfile b/Dockerfile
index 21a425f..57b3d38 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,8 +7,8 @@ COPY ./syncthingd.sh /usr/local/bin/syncthingd
 
 # Syncthing runs with Sutty's uid and gid so ownership is kept, because
 # they are not synced.
-RUN addgroup -g 82 -S syncthing
-RUN adduser -s /bin/sh -G syncthing -D -u 1000 -h /home/syncthing syncthing
+RUN getent group 82 || addgroup -g 82 -S www-data
+RUN adduser -s /bin/sh -G www-data -D -u 1000 -h /home/syncthing syncthing
 
 RUN apk add --no-cache ca-certificates daemonize syncthing