diff --git a/build/debian/build.sh b/build/debian/build.sh
index d2b7b3f..9ab271c 100755
--- a/build/debian/build.sh
+++ b/build/debian/build.sh
@@ -44,7 +44,7 @@ EOF
 
 # dpkg-deb
 find ./debian -type d | xargs chmod 755
-fakeroot dpkg-deb --build debian
+fakeroot dpkg-deb -Zxz --build debian
 mv debian.deb zjunet_${VERSION}_all.deb
 
 # remove debian/