diff --git a/ChangeLog b/ChangeLog
index e1d249b684..514d659e41 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+Sun Oct 16 19:46:16 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/bigdecimal/bigdecimal.gemspec (files): fixed typo, and
+	  removed nonexistent file.
+
+	* ext/bigdecimal/bigdecimal.gemspec (homepage): added.
+
+	* ext/io/console/io-console.gemspec (homepage): ditto.
+
 Fri Oct 14 12:13:57 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ext/pty/pty.c (pty_check): should return nil until the child
diff --git a/ext/bigdecimal/bigdecimal.gemspec b/ext/bigdecimal/bigdecimal.gemspec
index c8bd0aef18..362808c4e3 100644
--- a/ext/bigdecimal/bigdecimal.gemspec
+++ b/ext/bigdecimal/bigdecimal.gemspec
@@ -6,6 +6,7 @@ Gem::Specification.new do |s|
   s.version = _VERSION
   s.date = "2011-07-30"
   s.summary = "Arbitrary-precision decimal floating-point number library."
+  s.homepage = "http://www.ruby-lang.org"
   s.email = "mrkn@mrkn.jp"
   s.description = "This library provides arbitrary-precision decimal floating-point number class."
   s.authors = ["Kenta Murata", "Shigeo Kobayashi"]
@@ -17,11 +18,10 @@ Gem::Specification.new do |s|
     README
     depend extconf.rb
     lib/bigdecimal/jacobian.rb
-    lib/bigdecimal/lcdcmp.rb
+    lib/bigdecimal/ludcmp.rb
     lib/bigdecimal/math.rb
     lib/bigdecimal/newton.rb
     lib/bigdecimal/util.rb
-    lib/bigdecimal/version.rb
     sample/linear.rb
     sample/nlsolve.rb
     sample/pi.rb
diff --git a/ext/io/console/io-console.gemspec b/ext/io/console/io-console.gemspec
index 2d34a41336..66b3165967 100644
--- a/ext/io/console/io-console.gemspec
+++ b/ext/io/console/io-console.gemspec
@@ -8,6 +8,7 @@ Gem::Specification.new do |s|
   s.summary = "Console interface"
   s.email = "nobu@ruby-lang.org"
   s.description = "add console capabilities to IO instances."
+  s.homepage = "http://www.ruby-lang.org"
   s.authors = ["Nobu Nakada"]
   s.require_path = %[.]
   s.files = %w[console.c extconf.rb lib/console/size.rb]