diff --git a/src/intro/install/macos.md b/src/intro/install/macos.md
index b3a3cbbe..2afe2b77 100644
--- a/src/intro/install/macos.md
+++ b/src/intro/install/macos.md
@@ -6,7 +6,6 @@ All the tools can be install using [Homebrew]:
 
 ``` console
 $ # GDB
-$ brew tap armmbed/formulae
 $ brew install armmbed/formulae/arm-none-eabi-gcc
 
 $ # OpenOCD