diff --git a/README.md b/README.md
index aec57d2..e1d5d47 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ buildj - java build tool
 #### Install
 
 ```
-cargo install --git https://github.com/jht5945/buildj
+cargo install --git https://github.com/jht5945/buildj [--force]
 ```
 
 #### Usage