1 files changed, 2 insertions, 3 deletions
diff --git a/include/llvm/ADT/None.h b/include/llvm/ADT/None.h
index 5793bd2..d69ec17 100644
--- a/include/llvm/ADT/None.h
+++ b/include/llvm/ADT/None.h
@@ -19,9 +19,8 @@
 namespace llvm {
 /// \brief A simple null object to allow implicit construction of Optional<T>
 /// and similar types without having to spell out the specialization's name.
-enum NoneType {
-  None
-};
+enum class NoneType { None };
+const NoneType None = None;
 }
 
 #endif