diff --git a/ChangeLog b/ChangeLog
index 122fdf690d..75cbc447c6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Thu Oct 23 17:30:29 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* class.c (rb_class_instance_methods): rdoc fixed.  [ruby-core:19458]
+
 Thu Oct 23 16:19:33 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* lib/irb/init.rb (IRB.load_modules): catch LoadError explicitly.
diff --git a/class.c b/class.c
index 9ec27611ec..066fc07443 100644
--- a/class.c
+++ b/class.c
@@ -641,9 +641,9 @@ class_instance_method_list(int argc, VALUE *argv, VALUE mod, int (*func) (ID, lo
  *  call-seq:
  *     mod.instance_methods(include_super=true)   => array
  *  
- *  Returns an array containing the names of public instance methods in
- *  the receiver. For a module, these are the public methods; for a
- *  class, they are the instance (not singleton) methods. With no
+ *  Returns an array containing the names of instance methods that is callable
+ *  from outside in the receiver. For a module, these are the public methods;
+ *  for a class, they are the instance (not singleton) methods. With no
  *  argument, or with an argument that is <code>false</code>, the
  *  instance methods in <i>mod</i> are returned, otherwise the methods
  *  in <i>mod</i> and <i>mod</i>'s superclasses are returned.