diff --git a/lib/Sema/Sema.h b/lib/Sema/Sema.h
index 8a9be3a..6c52ae5 100644
--- a/lib/Sema/Sema.h
+++ b/lib/Sema/Sema.h
@@ -2485,8 +2485,7 @@
   virtual DeclPtrTy ActOnStartLinkageSpecification(Scope *S,
                                                    SourceLocation ExternLoc,
                                                    SourceLocation LangLoc,
-                                                   const char *Lang,
-                                                   unsigned StrSize,
+                                                   llvm::StringRef Lang,
                                                    SourceLocation LBraceLoc);
   virtual DeclPtrTy ActOnFinishLinkageSpecification(Scope *S,
                                                     DeclPtrTy LinkageSpec,