diff --git a/lib/CodeGen/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter.cpp
index 26a3d39db5e..5fdfbfd5a30 100644
--- a/lib/CodeGen/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter.cpp
@@ -19,6 +19,7 @@
 #include "llvm/Support/Mangler.h"
 #include "llvm/Support/MathExtras.h"
 #include "llvm/Target/TargetMachine.h"
+#include <iostream>
 using namespace llvm;
 
 AsmPrinter::AsmPrinter(std::ostream &o, TargetMachine &tm)
diff --git a/lib/CodeGen/ELFWriter.cpp b/lib/CodeGen/ELFWriter.cpp
index b58fc1ff0a9..c0b2cdfd2aa 100644
--- a/lib/CodeGen/ELFWriter.cpp
+++ b/lib/CodeGen/ELFWriter.cpp
@@ -37,6 +37,7 @@
 #include "llvm/CodeGen/MachineConstantPool.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Support/Mangler.h"
+#include <iostream>
 using namespace llvm;
 
 //===----------------------------------------------------------------------===//