diff --git a/AppImageBuilder-arm_aarch64.yml b/AppImageBuilder-arm_aarch64.yml
index 488471f..46bc2e9 100644
--- a/AppImageBuilder-arm_aarch64.yml
+++ b/AppImageBuilder-arm_aarch64.yml
@@ -34,7 +34,7 @@ AppDir:
     exec_args: "$APPDIR/usr/src/sticker-convert.py $@"
 
   apt:
-    arch: arm_aarch64
+    arch: arm64
     sources:
     - sourceline: deb [arch=arm64] https://ppa.launchpadcontent.net/deadsnakes/ppa/ubuntu focal main
       key_url: https://keyserver.ubuntu.com/pks/lookup?op=get&search=0xF23C5A6CF475977595C89F51BA6932366A755776