diff --git a/scripts/setup-user.sh b/scripts/setup-user.sh
index c27cb6b..eaf24c5 100755
--- a/scripts/setup-user.sh
+++ b/scripts/setup-user.sh
@@ -221,3 +221,5 @@ useradd --gid 9999 --no-create-home --home-dir /nonexistent --no-user-group --sy
 groupadd -g 100000 cosmo
 useradd -m -u 100000 -g 100000 -G audio,input,video,sudo,aid_system,aid_graphics,aid_input,aid_audio,aid_net_bt_admin,aid_net_bt,aid_inet,aid_net_raw,aid_net_admin -s /bin/bash cosmo
 echo cosmo:cosmo | chpasswd
+
+usermod systemd-timesync -a -G aid_inet