diff --git a/Library/Homebrew/cask/cmd/doctor.rb b/Library/Homebrew/cask/cmd/doctor.rb
index 353ce7b8fc..ec1b00fd1e 100644
--- a/Library/Homebrew/cask/cmd/doctor.rb
+++ b/Library/Homebrew/cask/cmd/doctor.rb
@@ -65,6 +65,7 @@ module Cask
 
         if path.exist? && !path.writable?
           add_error "The staging path #{user_tilde(path.to_s)} is not writable by the current user."
+          add_error "To fix, run \'sudo chown -R ${USER}:staff #{user_tilde(path.to_s)}'"
         end
 
         puts user_tilde(path.to_s)