From 36d1d21d493ab50a417787ae8684d3ee323acc35 Mon Sep 17 00:00:00 2001
From: Matthew Reichardt <me@matthewreichardt.com>
Date: Mon, 1 Jan 2018 22:43:02 -0600
Subject: [PATCH] Fixed MacOS Build Instructions

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index a0052ef81ea..395692a64cb 100644
--- a/README.md
+++ b/README.md
@@ -59,7 +59,7 @@ brew install gcc5 --without-multilib
 Install
 ```{r, engine='bash'}
 # Build
-./zcutil/build-mac.sh -j$(nproc)
+./zcutil/build-mac.sh -j$(sysctl -n hw.ncpu)
 # fetch key
 ./zcutil/fetch-params.sh
 # Run