diff --git a/doc/build-osx.txt b/doc/build-osx.txt
index 81e9960d5..24e825ca8 100644
--- a/doc/build-osx.txt
+++ b/doc/build-osx.txt
@@ -7,7 +7,7 @@ cryptographic software written by Eric Young (eay@cryptsoft.com) and UPnP
 software written by Thomas Bernard.
 
 
-Mac OSX bitcoind build instructions
+Mac OS X bitcoind build instructions
 Laszlo Hanyecz <solar@heliacal.net>
 Douglas Huff <dhuff@jrbobdobbs.org>
 
@@ -21,7 +21,7 @@ All of the commands should be executed in Terminal.app.. it's in
 /Applications/Utilities
 
 You need to install XCode with all the options checked so that the compiler and
-everything is available in /usr not just /Developer. XCode should be available on your OSX
+everything is available in /usr not just /Developer. XCode should be available on your OS X
 install DVD, but if not, you can get the current version from https://developer.apple.com/xcode/