diff --git a/pkgs/stdenv/generic/default.nix b/pkgs/stdenv/generic/default.nix
index edd5c2785dc..bd35970e0d1 100644
--- a/pkgs/stdenv/generic/default.nix
+++ b/pkgs/stdenv/generic/default.nix
@@ -139,7 +139,7 @@ let
             { nixpkgs.config.allow${up reason} = true; }
           in configuration.nix to override this.
 
-          b) For `nix-env`, `nix-build` or any other Nix command you can add
+          b) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
             { allow${up reason} = true; }
           to ~/.nixpkgs/config.nix.
         ''));