diff --git a/README.md b/README.md
index c50cef2..8307552 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ Build binary
 
 ```sh
 go clean -modcache
+# insatll to `go env GOPATH`
 go install github.com/lasorda/protobuf-language-server@latest
 ```