diff --git a/llvm/include/llvm/DebugInfo/PDB/Raw/Hash.h b/llvm/include/llvm/DebugInfo/PDB/Raw/Hash.h
index a4b5d17a5f00..8b822147e59b 100644
--- a/llvm/include/llvm/DebugInfo/PDB/Raw/Hash.h
+++ b/llvm/include/llvm/DebugInfo/PDB/Raw/Hash.h
@@ -11,6 +11,7 @@
 #define LLVM_DEBUGINFO_PDB_RAW_HASH_H
 
 #include "llvm/ADT/StringRef.h"
+#include <stdint.h>
 
 namespace llvm {
 namespace pdb {