diff --git a/README.md b/README.md
index 99d1f29..3b02825 100644
--- a/README.md
+++ b/README.md
@@ -6,5 +6,5 @@ Check <https://gitea.com/gitea/runner-images> for information about base images.
 
 ## Quick Start
 
-1. Put `joj3` into `/bin`
+1. Put `joj3` into `/bin` or run `make prepare`
 2. `make build && make push` on a machine that can access `focs.ji.sjtu.edu.cn:5000`