diff --git a/lib/CodeGen/ELFWriter.h b/lib/CodeGen/ELFWriter.h
index 5ea421e..be3b39b 100644
--- a/lib/CodeGen/ELFWriter.h
+++ b/lib/CodeGen/ELFWriter.h
@@ -16,6 +16,7 @@
 
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include <list>
+#include <map>
 
 namespace llvm {
   class GlobalVariable;
diff --git a/lib/CodeGen/MachOWriter.h b/lib/CodeGen/MachOWriter.h
index 39d73ee..44fa7d4 100644
--- a/lib/CodeGen/MachOWriter.h
+++ b/lib/CodeGen/MachOWriter.h
@@ -21,6 +21,7 @@
 #include "llvm/Target/TargetData.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetMachOWriterInfo.h"
+#include <map>
 
 namespace llvm {
   class GlobalVariable;
diff --git a/lib/CodeGen/RegAllocSimple.cpp b/lib/CodeGen/RegAllocSimple.cpp
index d65136a..081edd8 100644
--- a/lib/CodeGen/RegAllocSimple.cpp
+++ b/lib/CodeGen/RegAllocSimple.cpp
@@ -27,6 +27,7 @@
 #include "llvm/Support/Compiler.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/ADT/STLExtras.h"
+#include <map>
 using namespace llvm;
 
 STATISTIC(NumStores, "Number of stores added");