1 files changed, 7 insertions, 1 deletions
diff --git a/Library/Homebrew/compat/md5.rb b/Library/Homebrew/compat/md5.rb
index d600bab6d..55383f0c1 100644
--- a/Library/Homebrew/compat/md5.rb
+++ b/Library/Homebrew/compat/md5.rb
@@ -1,12 +1,18 @@
 class Formula
   def self.md5(val)
-    @stable ||= SoftwareSpec.new
+    @stable ||= create_spec(SoftwareSpec)
     @stable.md5(val)
   end
 end
 
 class SoftwareSpec
   def md5(val)
+    @resource.md5(val)
+  end
+end
+
+class Resource
+  def md5(val)
     @checksum = Checksum.new(:md5, val)
   end
 end