diff --git a/clang/include/clang/Frontend/MigratorOptions.h b/clang/include/clang/Frontend/MigratorOptions.h
index 42181c58566939..da899643f0b4b2 100644
--- a/clang/include/clang/Frontend/MigratorOptions.h
+++ b/clang/include/clang/Frontend/MigratorOptions.h
@@ -14,6 +14,8 @@
 #ifndef LLVM_CLANG_FRONTEND_MIGRATOROPTIONS_H
 #define LLVM_CLANG_FRONTEND_MIGRATOROPTIONS_H
 
+#include "llvm/Support/Compiler.h"
+
 namespace clang {
 
 class MigratorOptions {