diff --git a/guam.service b/guam.service
index 3fac8c6..591daf3 100644
--- a/guam.service
+++ b/guam.service
@@ -1,15 +1,17 @@
 [Unit]
 Description=Intelligent IMAP Reverse Proxy
 After=syslog.target
 
 [Service]
 ExecStart=/usr/sbin/guam foreground
 Restart=always
 StandardOutput=syslog
 SyslogIdentifier=guam
-User=guam
-Group=guam
+
+# No proper setuid/setgid in guam yet. See T971.
+#User=guam
+#Group=guam
 
 [Install]
 WantedBy=multi-user.target