diff --git a/ChangeLog b/ChangeLog
index 5e957fc9b1..5f90d7c7f4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Jul 16 18:50:08 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_count): [DOC] fix typo.  Array#count uses ==, not
+	  ===.  a question at asakusa.rb ML.
+
 Tue Jul 16 18:35:48 2013  Tanaka Akira  <akr@fsij.org>
 
 	* bignum.c (bary_mul_karatsuba): Avoid duplicate calculation when
diff --git a/array.c b/array.c
index 215f6fedb9..13a2c6124d 100644
--- a/array.c
+++ b/array.c
@@ -4113,7 +4113,7 @@ rb_ary_compact(VALUE ary)
  *  Returns the number of elements.
  *
  *  If an argument is given, counts the number of elements which equal +obj+
- *  using <code>===</code>.
+ *  using <code>==</code>.
  *
  *  If a block is given, counts the number of elements for which the block
  *  returns a true value.