diff --git a/dist/rpm/scion.postinst b/dist/rpm/scion.postinst
index 46812962d9..cbdba50244 100644
--- a/dist/rpm/scion.postinst
+++ b/dist/rpm/scion.postinst
@@ -1,8 +1,9 @@
 #!/bin/bash
 set -e
 
-# Create system user
-adduser --system --gid scion -M -s /sbin/nologin
+# Create system user/group
+groupadd --system -f scion
+useradd --system --gid scion -M -s /sbin/nologin
 
 # Create configuration directory
 mkdir /etc/scion/ >& /dev/null || true