diff --git a/Library/Homebrew/compat/md5.rb b/Library/Homebrew/compat/md5.rb
index 55383f0c14..eb8eb0232d 100644
--- a/Library/Homebrew/compat/md5.rb
+++ b/Library/Homebrew/compat/md5.rb
@@ -1,7 +1,6 @@
 class Formula
   def self.md5(val)
-    @stable ||= create_spec(SoftwareSpec)
-    @stable.md5(val)
+    stable.md5(val)
   end
 end