diff --git a/ubuntustudio/modules/users.conf b/ubuntustudio/modules/users.conf
index 326ac4b..397bcce 100644
--- a/ubuntustudio/modules/users.conf
+++ b/ubuntustudio/modules/users.conf
@@ -18,4 +18,6 @@ passwordRequirements:
     maxLength: 0
 # Explicitly set the shell instead of deferring to Calamares. We have a platform
 # expectation derived from Ubuntu here.
-userShell: /bin/bash
+user:
+    shell: /bin/bash
+    forbidden_names: [ root ]