diff --git a/include/picrin/record.h b/include/picrin/record.h
index 0c183977..bf8698f1 100644
--- a/include/picrin/record.h
+++ b/include/picrin/record.h
@@ -11,7 +11,6 @@ extern "C" {
 
 struct pic_record {
   PIC_OBJECT_HEADER
-  pic_value rectype;
   xhash     hash;
 };
 
diff --git a/src/gc.c b/src/gc.c
index c302fd0d..9fc02c7d 100644
--- a/src/gc.c
+++ b/src/gc.c
@@ -506,7 +506,6 @@ gc_mark_object(pic_state *pic, struct pic_object *obj)
     struct pic_record *rec = (struct pic_record *)obj;
     xh_iter it;
 
-    gc_mark(pic, rec->rectype);
     xh_begin(&it, &rec->hash);
     while (xh_next(&it)) {
       gc_mark(pic, xh_val(it.e, pic_value));
diff --git a/src/record.c b/src/record.c
index f97a6ff0..d62776ca 100644
--- a/src/record.c
+++ b/src/record.c
@@ -11,18 +11,17 @@ pic_record_new(pic_state *pic, pic_value rectype)
   struct pic_record *rec;
 
   rec = (struct pic_record *)pic_obj_alloc(pic, sizeof(struct pic_record), PIC_TT_RECORD);
-  rec->rectype = rectype;
   xh_init_int(&rec->hash, sizeof(pic_value));
 
+  pic_record_set(pic, rec, pic_intern_cstr(pic, "@@type"), rectype);
+
   return rec;
 }
 
 pic_value
 pic_record_type(pic_state *pic, struct pic_record *rec)
 {
-  UNUSED(pic);
-
-  return rec->rectype;
+  return pic_record_ref(pic, rec, pic_intern_cstr(pic, "@@type"));
 }
 
 pic_value