diff --git a/ChangeLog b/ChangeLog
index 85c7cbebf3..cbbfebf86c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+Wed Jul 10 11:35:36 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/net/http/test_http.rb (TestNetHTTP_v1_2#test_get,
+	  TestNetHTTP_v1_2_chunked#test_get): shoudn't check
+	  HttpResponse#decode_content if Zlib is not available.
+	  ko1 complained via IRC.
+
 Wed Jul 10 10:20:07 2013  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* tool/rbinstall.rb: always require rubygems to stabilize rubygems
diff --git a/test/net/http/test_http.rb b/test/net/http/test_http.rb
index b83844377f..709a2e2370 100644
--- a/test/net/http/test_http.rb
+++ b/test/net/http/test_http.rb
@@ -233,7 +233,7 @@ module TestNetHTTP_version_1_1_methods
       http.get('/', { 'User-Agent' => 'test' }.freeze)
     }
 
-    assert res.decode_content, '[Bug #7924]'
+    assert res.decode_content, '[Bug #7924]' if Net::HTTP::HAVE_ZLIB
   end
 
   def _test_get__iter(http)
@@ -460,7 +460,7 @@ module TestNetHTTP_version_1_2_methods
       assert_equal $test_net_http_data.size, res.body.size
       assert_equal $test_net_http_data, res.body
 
-      refute res.decode_content, 'Bug #7831'
+      refute res.decode_content, 'Bug #7831' if Net::HTTP::HAVE_ZLIB
     }
   end