diff --git a/lib/Sema/Sema.h b/lib/Sema/Sema.h
index 5588db7..93e6a06 100644
--- a/lib/Sema/Sema.h
+++ b/lib/Sema/Sema.h
@@ -2672,7 +2672,7 @@
   QualType CheckConstructorDeclarator(Declarator &D, QualType R,
                                       FunctionDecl::StorageClass& SC);
   void CheckConstructor(CXXConstructorDecl *Constructor);
-  QualType CheckDestructorDeclarator(Declarator &D,
+  QualType CheckDestructorDeclarator(Declarator &D, QualType R,
                                      FunctionDecl::StorageClass& SC);
   bool CheckDestructor(CXXDestructorDecl *Destructor);
   void CheckConversionDeclarator(Declarator &D, QualType &R,