diff --git a/llvm/lib/Bytecode/Reader/ArchiveReader.cpp b/llvm/lib/Bytecode/Reader/ArchiveReader.cpp
index d155b69..33ae24b 100644
--- a/llvm/lib/Bytecode/Reader/ArchiveReader.cpp
+++ b/llvm/lib/Bytecode/Reader/ArchiveReader.cpp
@@ -22,6 +22,8 @@
 #include "Config/sys/mman.h"
 #include "Config/fcntl.h"
 
+namespace llvm {
+
 namespace {
   struct ar_hdr {
     char name[16];
@@ -40,7 +42,6 @@
   };
 }
 
-
 // getObjectType - Determine the type of object that this header represents.
 // This is capable of parsing the variety of special sections used for various
 // purposes.
@@ -173,3 +174,5 @@
   
   return Result;
 }
+
+} // End llvm namespace