diff --git a/lib/Archive/ArchiveReader.cpp b/lib/Archive/ArchiveReader.cpp
index 1e2d2b47131..1d8530fc785 100644
--- a/lib/Archive/ArchiveReader.cpp
+++ b/lib/Archive/ArchiveReader.cpp
@@ -20,6 +20,7 @@
 #include "llvm/Module.h"
 #include "Support/FileUtilities.h"
 #include <cstdlib>
+#include <iostream>
 using namespace llvm;
 
 namespace {
diff --git a/lib/Bytecode/Archive/ArchiveReader.cpp b/lib/Bytecode/Archive/ArchiveReader.cpp
index 1e2d2b47131..1d8530fc785 100644
--- a/lib/Bytecode/Archive/ArchiveReader.cpp
+++ b/lib/Bytecode/Archive/ArchiveReader.cpp
@@ -20,6 +20,7 @@
 #include "llvm/Module.h"
 #include "Support/FileUtilities.h"
 #include <cstdlib>
+#include <iostream>
 using namespace llvm;
 
 namespace {
diff --git a/lib/Bytecode/Reader/ArchiveReader.cpp b/lib/Bytecode/Reader/ArchiveReader.cpp
index 1e2d2b47131..1d8530fc785 100644
--- a/lib/Bytecode/Reader/ArchiveReader.cpp
+++ b/lib/Bytecode/Reader/ArchiveReader.cpp
@@ -20,6 +20,7 @@
 #include "llvm/Module.h"
 #include "Support/FileUtilities.h"
 #include <cstdlib>
+#include <iostream>
 using namespace llvm;
 
 namespace {