diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index acb9754..0469953 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -19,19 +19,11 @@ npm i
 Run the `build` script:
 
 ```sh
-npm build
+npm run build
 ```
 
 The package is bundled using [pkgroll](https://github.com/privatenumber/pkgroll) (Rollup). It infers the entry-points from `package.json` so there are no build configurations.
 
-### Development (watch) mode
-
-During development, you can use the watch flag (`--watch, -w`) to automatically rebuild the package on file changes:
-
-```sh
-npm build -w
-```
-
 ## Running the package locally
 
 Since pkgroll knows the entry-point is a binary (being in `package.json#bin`), it automatically adds the Node.js hashbang to the top of the file, and chmods it so it's executable.