diff --git a/OS-X-Build.md b/OS-X-Build.md
index e7d8bd4..2963864 100644
--- a/OS-X-Build.md
+++ b/OS-X-Build.md
@@ -6,7 +6,7 @@ git clone https://github.com/xmrig/xmrig.git
 cd xmrig
 mkdir build
 cd build
-cmake ..
+cmake .. -DOPENSSL_ROOT_DIR=/usr/local/opt/openssl
 make
 ```