diff --git a/Library/Homebrew/extend/symbol.rb b/Library/Homebrew/extend/symbol.rb
index 75a17b5ad7..18ccb31474 100644
--- a/Library/Homebrew/extend/symbol.rb
+++ b/Library/Homebrew/extend/symbol.rb
@@ -1,5 +1,5 @@
 class Symbol
   def to_proc
-    proc { |obj, *args| obj.send(self, *args) }
+    proc { |*args| args.shift.send(self, *args) }
   end unless method_defined?(:to_proc)
 end