diff --git a/clang/include/clang/Sema/DelayedDiagnostic.h b/clang/include/clang/Sema/DelayedDiagnostic.h
index 9de7131f74c70..0105089a393f1 100644
--- a/clang/include/clang/Sema/DelayedDiagnostic.h
+++ b/clang/include/clang/Sema/DelayedDiagnostic.h
@@ -111,7 +111,9 @@ class AccessedEntity {
   }
 
 private:
+  LLVM_PREFERRED_TYPE(AccessSpecifier)
   unsigned Access : 2;
+  LLVM_PREFERRED_TYPE(bool)
   unsigned IsMember : 1;
   NamedDecl *Target;
   CXXRecordDecl *NamingClass;