diff --git a/clang/lib/Sema/SemaInit.cpp b/clang/lib/Sema/SemaInit.cpp
index 438e904..5249986 100644
--- a/clang/lib/Sema/SemaInit.cpp
+++ b/clang/lib/Sema/SemaInit.cpp
@@ -8268,7 +8268,8 @@
     break;
   case FK_UTF8StringIntoPlainChar:
     S.Diag(Kind.getLocation(),
-           diag::err_array_init_utf8_string_into_char);
+           diag::err_array_init_utf8_string_into_char)
+      << S.getLangOpts().CPlusPlus2a;
     break;
   case FK_ArrayTypeMismatch:
   case FK_NonConstantArrayInit: