diff --git a/artifact/README.md b/artifact/README.md
index 9e1736f7c..177366267 100644
--- a/artifact/README.md
+++ b/artifact/README.md
@@ -107,7 +107,7 @@ In this step, we demonstrate the performance of ShadowBound. You can use the fol
 
 ```bash
 docker pull dataisland/shadowbound-perfeval:latest
-docker run -privileged -it dataisland/shadowbound-perfeval /bin/bash
+docker run --privileged -it dataisland/shadowbound-perfeval /bin/bash
 python3 /root/scripts/spectest.py | tee /root/spectest.log
 ```