diff --git a/docs/build.md b/docs/build.md
index 6baf8a4b30..2ac7f4d93b 100644
--- a/docs/build.md
+++ b/docs/build.md
@@ -11,6 +11,8 @@
 
 ## Get started
 
+Make sure that you've installed `vue-cli` with `npm >= 3` or `yarn >= 0.7`.
+
 Populate an app entry `./index.js` in your project:
 
 ```js