1 files changed, 1 insertions, 1 deletions
diff --git a/dir.c b/dir.c
index 778a637cba..bc26436114 100644
--- a/dir.c
+++ b/dir.c
@@ -379,7 +379,7 @@ dir_memsize(const void *ptr)
 static const rb_data_type_t dir_data_type = {
     "dir",
     {dir_mark, dir_free, dir_memsize,},
-    NULL, NULL, RUBY_TYPED_FREE_IMMEDIATELY
+    0, 0, RUBY_TYPED_FREE_IMMEDIATELY
 };
 
 static VALUE dir_close(VALUE);