diff --git a/Library/Homebrew/extend/os/mac/diagnostic.rb b/Library/Homebrew/extend/os/mac/diagnostic.rb
index 229c10e9f8..4da59bc2f3 100644
--- a/Library/Homebrew/extend/os/mac/diagnostic.rb
+++ b/Library/Homebrew/extend/os/mac/diagnostic.rb
@@ -55,7 +55,7 @@ module Homebrew
 
         # Travis CI images are going to end up outdated so don't complain when
         # `brew test-bot` runs `brew doctor` in the CI for the Homebrew/brew 
-        # repository. This only needs to support whatever CI provided 
+        # repository. This only needs to support whatever CI provider
         # Homebrew/brew is currently using.
         return if ENV["TRAVIS"]