diff --git a/ChangeLog b/ChangeLog
index e7166066c1..779a358767 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Dec 25 14:12:12 2015  Martin Duerst  <duerst@it.aoyama.ac.jp>
+
+	* doc/CangeLog-2.3.0, ext/tk/lib/txextlib/SUPPORT_STATUS,
+	  include/ruby/version.h: minor grammar fixes [ci skip]
+
 Fri Dec 25 08:23:22 2015  Tadashi Saito  <tadashi_saito@dwango.co.jp>
 
 	* compile.c, cont.c, doc, man: fix common misspelling.
diff --git a/doc/ChangeLog-2.3.0 b/doc/ChangeLog-2.3.0
index c71636af8d..9838bf2f6b 100644
--- a/doc/ChangeLog-2.3.0
+++ b/doc/ChangeLog-2.3.0
@@ -19,8 +19,8 @@ Thu Dec 24 17:25:42 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 Thu Dec 24 16:17:47 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
-	* common.mk (fake.rb): $(arch)-fake.rb must depend miniruby because
-	  it may depend miniruby.
+	* common.mk (fake.rb): $(arch)-fake.rb must depend on miniruby because
+	  it may depend on miniruby.
 
 Thu Dec 24 16:13:05 2015  NARUSE, Yui  <naruse@ruby-lang.org>
 
@@ -11413,8 +11413,8 @@ Tue Jan 20 02:54:11 2015  Zachary Scott  <e@zzak.io>
 
 Mon Jan 19 22:08:26 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
-	* class.c (include_modules_at): allow prepend each modules up to
-	  once for each classes.  [EXPERIMENTAL]
+	* class.c (include_modules_at): allow to prepend each module up to
+	  once for each classe.  [EXPERIMENTAL]
 
 Sun Jan 18 18:32:20 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
diff --git a/ext/tk/lib/tkextlib/SUPPORT_STATUS b/ext/tk/lib/tkextlib/SUPPORT_STATUS
index b44b629e46..6af915360d 100644
--- a/ext/tk/lib/tkextlib/SUPPORT_STATUS
+++ b/ext/tk/lib/tkextlib/SUPPORT_STATUS
@@ -3,11 +3,11 @@
 
   *** RELEASE_DATE of the libraries => see 'tkextlib/version.rb' ***
 
-The following list shows *CURRENT* status when this file was modified
-at last. If you want to add other Tcl/Tk extensions to the planned list
-(or change its status position), please request them at the ruby-talk,
+The following list shows *CURRENT* status when this file was last modified.
+If you want to add other Tcl/Tk extensions to the planned list (or change
+their status position), please send a request to the ruby-talk,
 ruby-list, or ruby-dev ML. Although we cannot promise to support your
-requests, we'll try to do.
+requests, we'll try to do it.
 
 If you want to check that wrapper libraries are ready to use on your
 environment, please execute 'pkg_checker.rb' with no arguments. The
diff --git a/include/ruby/version.h b/include/ruby/version.h
index bb1926f721..23a9765e91 100644
--- a/include/ruby/version.h
+++ b/include/ruby/version.h
@@ -13,7 +13,7 @@
 
 /*
  * This file contains only
- * - never-changeable informations, and
+ * - never-changeable information, and
  * - interfaces accessible from extension libraries.
  *
  * Never try to check RUBY_VERSION_CODE etc in extension libraries,