diff --git a/pkgs/misc/vim-plugins/default.nix b/pkgs/misc/vim-plugins/default.nix
index 7944533c1129..0bfa6c89a152 100644
--- a/pkgs/misc/vim-plugins/default.nix
+++ b/pkgs/misc/vim-plugins/default.nix
@@ -16,7 +16,7 @@ in
 
 # TL;DR
 # Add your plugin to ./vim-plugin-names
-# Regenerate via `nix-shell -p vimPlugins.pluginnames2nix --command "vim-plugin-names-to-nix"`
+# Regenerate via `nix-shell -I nixpkgs=/path/to/your/local/fork -p vimPlugins.pluginnames2nix --command "vim-plugin-names-to-nix"`
 # Copy the generated expression(s) into this file.
 # If plugin is complicated then make changes to ./vim2nix/additional-nix-code