diff --git a/ChangeLog b/ChangeLog
index ede508ddab..d590b9b7e4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Thu Feb 16 00:14:04 2012  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* lib/abbrev.rb (Array#abbrev): add missing '"' in documentation.
+
 Wed Feb 15 22:20:19 2012  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
 
 	* cont.c (rb_fiber_reset_root_local_storage): add a new function to
diff --git a/lib/abbrev.rb b/lib/abbrev.rb
index aa7e33a65d..e6e810bf69 100644
--- a/lib/abbrev.rb
+++ b/lib/abbrev.rb
@@ -84,7 +84,7 @@ class Array
   # the pattern or starting with the string are considered.
   #
   #   %w{ car cone }.abbrev   #=> { "ca" => "car", "car" => "car",
-  #                                 "co" => "cone", "con" => cone",
+  #                                 "co" => "cone", "con" => "cone",
   #                                 "cone" => "cone" }
   def abbrev(pattern = nil)
     Abbrev::abbrev(self, pattern)