diff --git a/packaging/package-all.sh b/packaging/package-all.sh
index 5a422e7496..188a5dcced 100755
--- a/packaging/package-all.sh
+++ b/packaging/package-all.sh
@@ -45,7 +45,7 @@ pushd osx/
 sh package-game.sh ~/openra-package/$_gitname-build "$VERSION"
 popd
 
-./uploader.sh osx "$VERSION" ~/openra-package/$_gitname-build/osxbuild/OpenRA-$VERSION.zip "$2" "$3"
+./uploader.sh mac "$VERSION" ~/openra-package/$_gitname-build/osxbuild/OpenRA-$VERSION.zip "$2" "$3"
 
 pushd windows/
 makensis -DSRCDIR=/home/openra/openra-package/$_gitname-build OpenRA.nsi
diff --git a/packaging/uploader.sh b/packaging/uploader.sh
index e7a1875ef2..0a44eeb17f 100755
--- a/packaging/uploader.sh
+++ b/packaging/uploader.sh
@@ -14,8 +14,8 @@ if [ ! -e "${FILENAME}" ]; then
 	exit 1
 fi
 
-SIZE=`stat -c "%s" ${FILENAME}`B
-echo "{\n\t\"version\":\"${VERSION}\",\n\t\"size\":\"${SIZE}\"\n}" > /tmp/version.json
+SIZE=`du -bh ${FILENAME} | cut -f1`B
+echo -e "{\n\t\"version\":\"${VERSION}\",\n\t\"size\":\"${SIZE}\"\n}" > /tmp/version.json
 echo `basename ${FILENAME}` > /tmp/latest.txt
 
 pushd `dirname ${FILENAME}`