diff --git a/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/__init__.py b/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/__init__.py
index ce5dd41514fb..4bca0cc03678 100644
--- a/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/__init__.py
+++ b/pkgs/by-name/ni/nixos-rebuild-ng/src/nixos_rebuild/__init__.py
@@ -248,11 +248,8 @@ def parse_args(
             parser.print_help()
             parser.exit()
 
-    if args.action is None and len(sys.argv) > 1:
-      parser.error(f"No valid subcommand (Eg: nixos-rebuild switch). Type {parser.prog} --help for more information")
-
     if args.action is None:
-      parser.error(f"No valid args or subcommands. Type {parser.prog} --help for more information")
+      parser.error(f"No valid subcommands. Type {parser.prog} --help for more information")
 
     def parser_warn(msg: str) -> None:
         print(f"{parser.prog}: warning: {msg}", file=sys.stderr)