diff --git a/packages/@vue/cli-plugin-unit-mocha/README.md b/packages/@vue/cli-plugin-unit-mocha/README.md
index d680b8133c..9190a4eb52 100644
--- a/packages/@vue/cli-plugin-unit-mocha/README.md
+++ b/packages/@vue/cli-plugin-unit-mocha/README.md
@@ -31,5 +31,5 @@
 ## Installing in an Already Created Project
 
 ``` sh
-vue add unit-mocha
+vue add @vue/unit-mocha
 ```