diff --git a/README.MACOS.md b/README.MACOS.md
index 8d6b854..7bbafd5 100644
--- a/README.MACOS.md
+++ b/README.MACOS.md
@@ -29,6 +29,8 @@ Welcome to the early-stage version of the FIDO2-Manage Script adaptation for mac
     `brew install libuv`
 
     `brew install pkg-config`
+   
+    `brew install openssl`
 
     `brew install grep`