diff --git a/tools/push b/tools/push
index bee26934..778f770b 100755
--- a/tools/push
+++ b/tools/push
@@ -10,6 +10,6 @@ git checkout next
 git rebase master
 git push
 git checkout master
-./acprep opt upload
+./acprep -j16 opt upload
 mv *.dmg* build
 git checkout next