index d3a3b4f40..a7bb9eca6 100644
--- tools/clang/include/clang/Basic/Version.h
+++ tools/clang/include/clang/Basic/Version.h
@@ -16,6 +16,8 @@
 #ifndef LLVM_CLANG_BASIC_VERSION_H
 #define LLVM_CLANG_BASIC_VERSION_H
 
+#include <stdint.h>
+
 #include "clang/Basic/Version.inc"
 #include "llvm/ADT/StringRef.h"