diff --git a/ChangeLog b/ChangeLog
index 14f6be7312..95c6c895d1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Dec 10 12:01:15 2002  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
+
+	* eval.c (mnew): original class of method defined in module should
+	  be the module not intermediate class.  [ruby-dev:19040]
+
 Wed Dec  4 16:37:11 2002  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* object.c (copy_object): copy finalizers as well if any.
diff --git a/eval.c b/eval.c
index d35b9b7395..1daf12e6c1 100644
--- a/eval.c
+++ b/eval.c
@@ -6878,6 +6878,7 @@ mnew(klass, obj, id, mklass)
 	goto again;
     }
 
+    if (TYPE(klass) == T_ICLASS) klass = RBASIC(klass)->klass;
     method = Data_Make_Struct(mklass, struct METHOD, bm_mark, free, data);
     data->klass = klass;
     data->recv = obj;