diff --git a/ChangeLog b/ChangeLog
index d9bc19ac2e..49fc09c8d8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Sun Oct 23 16:33:35 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* ext/tk/MANUAL_tcltklib.eng: fix typo. reported by Mimura-san.
+	  [ruby-dev:44683] [Bug #5471]
+
 Sun Oct 23 08:01:29 2011  Tanaka Akira  <akr@fsij.org>
 
 	* io.c (rb_fd_set_cloexec): set close-on-exec flag only if F_GETFD is
diff --git a/ext/tk/MANUAL_tcltklib.eng b/ext/tk/MANUAL_tcltklib.eng
index 8ba202c06f..95dd2e768f 100644
--- a/ext/tk/MANUAL_tcltklib.eng
+++ b/ext/tk/MANUAL_tcltklib.eng
@@ -11,7 +11,7 @@ module TclTklib
   : Tcl/Tk interpreters
 
   module TclTkLib::EventFlag
-    : Defines flags to define taget events on 'do_one_event' methos.
+    : Defines flags to define taget events on 'do_one_event' methods.
     : When to give, please use bit-operator (e.g. WINDOW | DONT_WAIT).
 
     [constants]