diff --git a/Library/Homebrew/requirement.rb b/Library/Homebrew/requirement.rb
index 0e8cb59a8b..fd726be204 100644
--- a/Library/Homebrew/requirement.rb
+++ b/Library/Homebrew/requirement.rb
@@ -33,10 +33,10 @@ class Requirement
   def message
     s = ""
     if cask
-      s +=  <<-EOS.undent
+      s += <<-EOS.undent
 
         You can install with Homebrew Cask:
-          brew install Caskroom/cask/#{cask}
+          brew cask install #{cask}
       EOS
     end