diff --git a/README.md b/README.md
index 4640ba5..4364f67 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,12 @@ Firstly, you should  enter WSL
 wsl -d BioArch
 ```
 
+Optional, you can set BioArchLinux as default distribution 
+
+```
+wsl --set-default BioArch
+```
+
 then you need to choose a mirror of archlinux and bioarchlinux
 
 choose mirror of archlinux from [here](https://archlinux.org/mirrorlist/) and run the following command ( take sdu mirror as the example)