diff --git a/README.md b/README.md
index ae23126..8dc033a 100644
--- a/README.md
+++ b/README.md
@@ -192,9 +192,9 @@ $ bin/update-formats.sh
 ### TLD Update Utility Prerequisites
  * Node.js version 8.11 or higher.
  * (Optional) PHP command-line version 7.2 or higher, to create the [PHP format class file](#tld-list-formats).
- * `npm install --dev` must have been performed (in the project root):
+ * The *devDependencies* from [*package.json*](./package.json) must be fullfilled:
    ```sh
-   npm install --dev
+   $ npm install --dev
    ```
 
 ### TLD Update Utility Usage