diff --git a/lib/Bytecode/Reader/ReaderInternals.h b/lib/Bytecode/Reader/ReaderInternals.h
index 4d8806a8437..61e6fa9bd76 100644
--- a/lib/Bytecode/Reader/ReaderInternals.h
+++ b/lib/Bytecode/Reader/ReaderInternals.h
@@ -1,4 +1,4 @@
-//===-- ReaderInternals.h - Definitions internal to the reader ------------===//
+//===-- ReaderInternals.h - Definitions internal to the reader --*- C++ -*-===//
 //
 //  This header file defines various stuff that is used by the bytecode reader.
 //