diff --git a/scripts/register_new_matrix_user b/scripts/register_new_matrix_user
index b2cf5aeadf..166c03b000 100755
--- a/scripts/register_new_matrix_user
+++ b/scripts/register_new_matrix_user
@@ -203,6 +203,6 @@ if __name__ == "__main__":
     else:
         secret = args.shared_secret
 
-    admin = args.admin or not args.no_admin or None
+    admin = args.admin or args.no_admin or None
 
     register_new_user(args.user, args.password, args.server_url, secret, admin)