diff --git a/ChangeLog b/ChangeLog
index d0d833925c..ad3da2f08c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Jan 13 21:28:14 2009  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* object.c (rb_obj_not_match): rdoc.
+	  Patch by Kornelius Kalnbach.
+
 Tue Jan 13 18:21:44 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* io.c (rb_io_close_read): call rb_io_fptr_cleanup() instead of
diff --git a/object.c b/object.c
index aacf7ce43f..6c418d25e2 100644
--- a/object.c
+++ b/object.c
@@ -1092,9 +1092,10 @@ rb_obj_match(VALUE obj1, VALUE obj2)
 
 /*
  *  call-seq:
- *     obj !~ other  => nil
+ *     obj !~ other  => true or false
  *  
- *  Returns true if two objects does not match, using <i>=~</i> method.
+ *  Returns true if two objects do not match (using the <i>=~</i>
+ *  method), otherwise false.
  */
 
 static VALUE