diff --git a/README.markdown b/README.markdown
index 6178d3d222379cac3c92b25a3f1b9e9a3e0bb245..470cf8133884319ba10f1864a7724c9478e8a003 100644
--- a/README.markdown
+++ b/README.markdown
@@ -32,8 +32,8 @@ The most up to date firmware can be found in the `develop` (or individual featur
 
 * Mac or Linux:
 	* GNU Make (OS X: included with Developer Tools)
-	* avr-gcc (OS X: install with homebrew)
-	* avr-libc (OS X: install with homebrew)
+	* avr-gcc (OS X: install with homebrew `brew tap osx-cross/avr && brew install avr-gcc`)
+	* avr-libc (OS X: included with avr-gcc)
 * Windows:
     * Docker