diff --git a/include/llvm/Function.h b/include/llvm/Function.h
index 31ee6d7544d..2c4f9d9e27d 100644
--- a/include/llvm/Function.h
+++ b/include/llvm/Function.h
@@ -101,6 +101,9 @@ private:
       BuildLazyArguments();
   }
   void BuildLazyArguments() const;
+  
+  Function(const Function&); // DO NOT IMPLEMENT
+  void operator=(const Function&); // DO NOT IMPLEMENT
 public:
   /// Function ctor - If the (optional) Module argument is specified, the
   /// function is automatically inserted into the end of the function list for