diff --git a/ChangeLog b/ChangeLog
index b9887fec1e..be4e5bb98c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Mon Jun 10 17:20:01 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (rgengc_remember): permit promoted object.
+	  (rb_gc_writebarrier -> remember)
+
 Mon Jun 10 17:14:01 2013  Koichi Sasada  <ko1@atdot.net>
 
 	* gc.c (RVALUE_PROMOTE): fix parameter name (`x' to `obj')
diff --git a/gc.c b/gc.c
index 772966b65f..bfdf66b58a 100644
--- a/gc.c
+++ b/gc.c
@@ -3552,11 +3552,6 @@ rgengc_remembersetbits_set(rb_objspace_t *objspace, VALUE obj)
 static void
 rgengc_remember(rb_objspace_t *objspace, VALUE obj)
 {
-    if (RGENGC_CHECK_MODE && RVALUE_PROMOTED(obj)) {
-	rb_bug("rgengc_remember: %p (%s) is promoted object",
-	       (void *)obj, obj_type_name(obj));
-    }
-
     rgengc_report(0, objspace, "rgengc_remember: %p (%s, %s) %s\n", (void *)obj, obj_type_name(obj),
 		  RVALUE_SHADY(obj) ? "shady" : "non-shady",
 		  rgengc_remembersetbits_get(objspace, obj) ? "was already remembered" : "is remembered now");