diff --git a/_posts/01-04-01-Mac-Setup.md b/_posts/01-04-01-Mac-Setup.md
index 5b2099b..8c772cd 100644
--- a/_posts/01-04-01-Mac-Setup.md
+++ b/_posts/01-04-01-Mac-Setup.md
@@ -5,10 +5,10 @@ anchor: mac_setup
 
 ## Mac Setup  {#mac_setup_title}
 
-OSX comes prepackaged with PHP but it is normally a little behind the latest stable. Lion comes with PHP 5.3.6,
+OS X comes prepackaged with PHP but it is normally a little behind the latest stable. Lion comes with PHP 5.3.6,
 Mountain Lion has 5.3.10, and Mavericks has 5.4.17.
 
-To update PHP on OSX you can get it installed through a number of Mac [package managers][mac-package-managers], with
+To update PHP on OS X you can get it installed through a number of Mac [package managers][mac-package-managers], with
 [php-osx by Liip][php-osx-downloads] being recommended.
 
 You can also [compile it yourself][mac-compile]; if you do, be sure to have installed either Xcode or