diff --git a/ChangeLog b/ChangeLog
index 9d6fca280c..6c171c0774 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Mon Oct 11 20:20:23 2010  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/net/http.rb (HTTP.get): specify ASCII-8BIT as the result
+	  encoding of Zlib::GzipReader.
+	  http://hibari.2ch.net/test/read.cgi/tech/1281473294/271
+
 Mon Oct 11 17:42:54 2010  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* error.c (syserr_initialize): use mesg's encoding when locale
diff --git a/lib/net/http.rb b/lib/net/http.rb
index 0ae1ba8c8f..a4e2cee8e5 100644
--- a/lib/net/http.rb
+++ b/lib/net/http.rb
@@ -883,7 +883,7 @@ module Net   #:nodoc:
           the_body = r.read_body dest, &block
           case r["content-encoding"]
           when "gzip"
-            r.body= Zlib::GzipReader.new(StringIO.new(the_body)).read
+            r.body= Zlib::GzipReader.new(StringIO.new(the_body), encoding: "ASCII-8BIT").read
             r.delete("content-encoding")
           when "deflate"
             r.body= Zlib::Inflate.inflate(the_body);