diff --git a/.travis.yml b/.travis.yml
index 6c45e2f36b27b6..9877a142aef875 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -71,7 +71,7 @@ install:
         /tmp/wordpress-develop-master/*config-sample.php \
         /tmp/wordpress-develop-master/package.json wordpress
 
-      # Install WordPress.
+      # Install WordPress. The additional dependencies are required by the copied `wordpress-develop` tools.
       cd wordpress
       npm install dotenv wait-on
       npm run env:start