diff --git a/include/llvm/CodeGen/FastISel.h b/include/llvm/CodeGen/FastISel.h
index 4f5a37ca0ab..91a01729f21 100644
--- a/include/llvm/CodeGen/FastISel.h
+++ b/include/llvm/CodeGen/FastISel.h
@@ -1,4 +1,4 @@
-//===-- FastISel.h - Definition of the FastISel class ---------------------===//
+//===-- FastISel.h - Definition of the FastISel class ---*- mode: c++; -*--===//
 //
 //                     The LLVM Compiler Infrastructure
 //