1 files changed, 1 insertions, 0 deletions
diff --git a/error.c b/error.c
index ba9c720821..424999f0b1 100644
--- a/error.c
+++ b/error.c
@@ -1033,6 +1033,7 @@ static const rb_data_type_t name_err_mesg_data_type = {
 	name_err_mesg_free,
 	name_err_mesg_memsize,
     },
+    NULL, NULL, RUBY_TYPED_FREE_IMMEDIATELY
 };
 
 /* :nodoc: */