diff --git a/Dockerfile b/Dockerfile
index 0133a6c..9e57177 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,7 +18,7 @@ FROM sutty/monit:latest
 # Syncthing runs with the same uid and gid for Sutty so ownership is
 # kept, since ST doesn't sync these.
 RUN addgroup -g 82 -S syncthing
-RUN adduser -s /bin/sh -G www-data -D -u 1000 -h /home/syncthing syncthing
+RUN adduser -s /bin/sh -G syncthing -D -u 1000 -h /home/syncthing syncthing
 
 RUN apk add --no-cache ca-certificates daemonize