diff --git a/ChangeLog b/ChangeLog
index d4501781fd..7b527c2a9f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Mon Feb 15 13:11:47 2010  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* array.c (rb_ary_push_m): use rb_ary_modify instead of
+	  rb_ary_modify_check.
+
 Sun Feb 14 12:54:44 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* marshal.c (r_object0): removed duplicated entry for regexp.
diff --git a/array.c b/array.c
index a6c03e9248..02e6d1861d 100644
--- a/array.c
+++ b/array.c
@@ -751,7 +751,7 @@ rb_ary_push_1(VALUE ary, VALUE item)
 static VALUE
 rb_ary_push_m(int argc, VALUE *argv, VALUE ary)
 {
-    rb_ary_modify_check(ary);
+    rb_ary_modify(ary);
     while (argc--) {
 	rb_ary_push_1(ary, *argv++);
     }