diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index fa3537c6482..67a6537999e 100644
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -1,4 +1,4 @@
-//===- X86InstrInfo.cpp - X86 Instruction Information ---------------===//
+//===- X86InstrInfo.cpp - X86 Instruction Information -----------*- C++ -*-===//
 //
 // This file contains the X86 implementation of the MachineInstrInfo class.
 //