diff --git a/pkgs/stdenv/generic/default.nix b/pkgs/stdenv/generic/default.nix
index b0031178bbd4..14da127b9e05 100644
--- a/pkgs/stdenv/generic/default.nix
+++ b/pkgs/stdenv/generic/default.nix
@@ -62,7 +62,7 @@ let
             Package ‘${attrs.name}’ in ${pos'} has an unfree license, refusing to evaluate. You can set
               { nixpkgs.config.allowUnfree = true; }
             in configuration.nix to override this. If you use Nix standalone, you can add
-              { config.allowUnfree = true; }
+              { allowUnfree = true; }
             to ~/.nixpkgs/config.nix or pass
               --arg config '{ allowUnfree = true; }'
             on the command line.''