diff --git a/lib/MC/MCDisassembler/EDToken.cpp b/lib/MC/MCDisassembler/EDToken.cpp
index 400e1649e97..e6341dc1ef4 100644
--- a/lib/MC/MCDisassembler/EDToken.cpp
+++ b/lib/MC/MCDisassembler/EDToken.cpp
@@ -18,6 +18,7 @@
 #include "llvm/MC/MCParser/MCAsmLexer.h"
 #include "llvm/MC/MCParser/MCParsedAsmOperand.h"
 #include "llvm/ADT/SmallVector.h"
+#include "llvm/System/DataTypes.h"
 using namespace llvm;
 
 EDToken::EDToken(StringRef str,