diff --git a/clang/include/clang/Basic/TargetCXXABI.h b/clang/include/clang/Basic/TargetCXXABI.h
index ed6438a9b236..d987d1b0eda0 100644
--- a/clang/include/clang/Basic/TargetCXXABI.h
+++ b/clang/include/clang/Basic/TargetCXXABI.h
@@ -15,6 +15,7 @@
 #ifndef LLVM_CLANG_BASIC_TARGETCXXABI_H
 #define LLVM_CLANG_BASIC_TARGETCXXABI_H
 
+#include "clang/Basic/LLVM.h"
 #include "llvm/ADT/StringMap.h"
 #include "llvm/Support/ErrorHandling.h"