diff --git a/llvm/include/llvm/Object/IRObjectFile.h b/llvm/include/llvm/Object/IRObjectFile.h
--- a/llvm/include/llvm/Object/IRObjectFile.h
+++ b/llvm/include/llvm/Object/IRObjectFile.h
@@ -13,12 +13,12 @@
 #ifndef LLVM_OBJECT_IROBJECTFILE_H
 #define LLVM_OBJECT_IROBJECTFILE_H
 
+#include "llvm/Bitcode/BitcodeReader.h"
 #include "llvm/Object/IRSymtab.h"
 #include "llvm/Object/ModuleSymbolTable.h"
 #include "llvm/Object/SymbolicFile.h"
 
 namespace llvm {
-class BitcodeModule;
 class Module;
 
 namespace object {
@@ -82,6 +82,6 @@
 
 }
 
-}
+} // namespace llvm
 
 #endif