diff --git a/README.md b/README.md
index f11e0af..cd49ef5 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ Run `flutter build ios/windows/macos`
 
 ### Build Linux
 
-Use`python3 debian/build.py` to build deb package
+Use`python3 debian/build.py {ARCH}` to build deb package. Replace {ARCH} with `x64` or `arm64`.
 
 For other linux distributions, you can use `flutter build linux` to build. 
 You must register the `pixiv` scheme in the `.desktop` file, otherwise the login will not work.
@@ -41,4 +41,4 @@ You must register the `pixiv` scheme in the `.desktop` file, otherwise the login
 <img src="screenshots/1.png" style="width: 400px">
 <img src="screenshots/2.png" style="width: 400px">
 <img src="screenshots/3.png" style="width: 400px">
-<img src="screenshots/4.png" style="width: 400px">
\ No newline at end of file
+<img src="screenshots/4.png" style="width: 400px">