diff --git a/ChangeLog b/ChangeLog
index f1cf7a5a90..fb77a65d71 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Jun 29 20:51:04 2007  Tanaka Akira  <akr@fsij.org>
+
+	* lib/cgi/session.rb (create_new_id): don't cut off md5.hexdigest to
+	  follow Ruby 1.8.
+
 Fri Jun 29 17:10:14 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* debug.h: constified.
diff --git a/lib/cgi/session.rb b/lib/cgi/session.rb
index 8a6ba24c2c..c6145d9368 100644
--- a/lib/cgi/session.rb
+++ b/lib/cgi/session.rb
@@ -186,7 +186,7 @@ class CGI
         md5.update(String(rand(0)))
         md5.update(String($$))
         md5.update('foobar')
-        session_id = md5.hexdigest[0,16]
+        session_id = md5.hexdigest
       end
       @new_session = true
       session_id