diff --git a/llvm/include/llvm/CAS/FileOffset.h b/llvm/include/llvm/CAS/FileOffset.h
index 21d045e8c9d78..a3dc06b38e996 100644
--- a/llvm/include/llvm/CAS/FileOffset.h
+++ b/llvm/include/llvm/CAS/FileOffset.h
@@ -15,7 +15,7 @@
 #ifndef LLVM_CAS_FILEOFFSET_H
 #define LLVM_CAS_FILEOFFSET_H
 
-#include <cstdlib>
+#include <cstdint>
 
 namespace llvm::cas {