1 files changed, 3 insertions, 3 deletions
diff --git a/time.c b/time.c
index 64fd92f020..d28e0e9f6c 100644
--- a/time.c
+++ b/time.c
@@ -1501,7 +1501,7 @@ guess_local_offset(struct vtm *vtm_utc, int *isdst_ret, VALUE *zone_ret)
             localtime_with_gmtoff_zone(&now, &tm, &now_gmtoff, &zone);
             now_isdst = tm.tm_isdst;
             zone = rb_fstring(zone);
-            rb_gc_register_mark_object(zone);
+            rb_vm_register_global_object(zone);
             now_zone = zone;
         }
         if (isdst_ret)
@@ -5773,9 +5773,9 @@ Init_Time(void)
     sym_zone = ID2SYM(rb_intern_const("zone"));
 
     str_utc = rb_fstring_lit("UTC");
-    rb_gc_register_mark_object(str_utc);
+    rb_vm_register_global_object(str_utc);
     str_empty = rb_fstring_lit("");
-    rb_gc_register_mark_object(str_empty);
+    rb_vm_register_global_object(str_empty);
 
     rb_cTime = rb_define_class("Time", rb_cObject);
     VALUE scTime = rb_singleton_class(rb_cTime);