diff --git a/lsy-frpc/build.sh b/lsy-frpc/build.sh
index 2586ac4..e4ea042 100644
--- a/lsy-frpc/build.sh
+++ b/lsy-frpc/build.sh
@@ -1,4 +1,5 @@
 # sed -i 's/Architecture: amd64/Architecture: arm64/' ./lsyloader/DEBIAN/control
+rm -rf ../arm64
 dpkg-deb --build ./ lsyfrpc.deb
 ver=$(dpkg-deb --show lsyfrpc.deb|awk '{print $2}')
 echo `sha256sum lsyfrpc.deb` >> "lsyfrpc$ver.debSign"