diff --git a/chapter4.txt b/chapter4.txt
index 95bb1a6..4ef5cdc 100644
--- a/chapter4.txt
+++ b/chapter4.txt
@@ -393,12 +393,12 @@ We'll now use `forever` (which we installed earlier) to start the app.
 {lang="yaml",starting-line-number=41}
 ```
     - name: Check list of running Node.js apps.
-      command: /usr/local/bin/forever list
+      command: npx forever list
       register: forever_list
       changed_when: false
 
     - name: Start example Node.js app.
-      command: "/usr/local/bin/forever start {{ node_apps_location }}/app/app.js"
+      command: "npx forever start {{ node_apps_location }}/app/app.js"
       when: "forever_list.stdout.find(node_apps_location + \
 '/app/app.js') == -1"
 ```