diff --git a/Library/Homebrew/cmd/doctor.rb b/Library/Homebrew/cmd/doctor.rb
index 0de6508cac61f6ceb49d5ac23126ba902aa393c8..3924960ecf1fc7553f40e3d4095f7c7c17e50a90 100644
--- a/Library/Homebrew/cmd/doctor.rb
+++ b/Library/Homebrew/cmd/doctor.rb
@@ -550,6 +550,8 @@ def check_for_multiple_volumes
   where_cellar = volumes.which real_cellar
   where_temp = volumes.which real_temp
 
+  Dir.delete tmp
+
   unless where_cellar == where_temp
     puts <<-EOS.undent
       Your Cellar & TEMP folders are on different volumes.