diff --git a/tools/build/build_asf.sh b/tools/build/build_asf.sh
index 27c178129b0..4f4490ab3bd 100755
--- a/tools/build/build_asf.sh
+++ b/tools/build/build_asf.sh
@@ -82,20 +82,21 @@ cp $sourcedir/KEYS $outputdir/KEYS
 
 cd $sourcedir
 echo 'archiving'
-git archive --format=tar.gz --prefix=apache-cloudstack-$version-incubating-src/ $branch > $outputdir/apache-cloudstack-$version-incubating-src.tar.gz
+git archive --format=tar --prefix=apache-cloudstack-$version-incubating-src/ $branch > $outputdir/apache-cloudstack-$version-incubating-src.tar
+bzip2 $outputdir/apache-cloudstack-$version-incubating-src.tar
 
 cd $outputdir
 echo 'armor'
-gpg -v $keyid --armor --output apache-cloudstack-$version-incubating-src.tar.gz.asc --detach-sig apache-cloudstack-$version-incubating-src.tar.gz
+gpg -v $keyid --armor --output apache-cloudstack-$version-incubating-src.tar.bz2.asc --detach-sig apache-cloudstack-$version-incubating-src.tar.bz2
 
 echo 'md5'
-gpg -v --print-md MD5 apache-cloudstack-$version-incubating-src.tar.gz > apache-cloudstack-$version-incubating-src.tar.gz.md5
+gpg -v --print-md MD5 apache-cloudstack-$version-incubating-src.tar.bz2 > apache-cloudstack-$version-incubating-src.tar.bz2.md5
 
 echo 'sha'
-gpg -v --print-md SHA512 apache-cloudstack-$version-incubating-src.tar.gz > apache-cloudstack-$version-incubating-src.tar.gz.sha
+gpg -v --print-md SHA512 apache-cloudstack-$version-incubating-src.tar.bz2 > apache-cloudstack-$version-incubating-src.tar.bz2.sha
 
 echo 'verify'
-gpg -v --verify apache-cloudstack-$version-incubating-src.tar.gz.asc apache-cloudstack-$version-incubating-src.tar.gz
+gpg -v --verify apache-cloudstack-$version-incubating-src.tar.bz2.asc apache-cloudstack-$version-incubating-src.tar.bz2
 
 if [ $tag == 'yes' ]; then
   echo 'tag'