diff --git a/include/llvm/AddressingMode.h b/include/llvm/AddressingMode.h
index 2b6d6ed33c5..70b3c05238c 100644
--- a/include/llvm/AddressingMode.h
+++ b/include/llvm/AddressingMode.h
@@ -14,7 +14,7 @@
 #ifndef LLVM_ADDRESSING_MODE_H
 #define LLVM_ADDRESSING_MODE_H
 
-#include <sys/types.h>
+#include "llvm/Support/DataTypes.h"
 
 namespace llvm {