diff --git a/lib/puma/server.rb b/lib/puma/server.rb
index 39a5ab54..8149b77d 100644
--- a/lib/puma/server.rb
+++ b/lib/puma/server.rb
@@ -307,6 +307,7 @@ module Puma
         if chunked
           client.write "0"
           client.write line_ending
+          client.write line_ending
           client.flush
         end
 
diff --git a/test/test_persistent.rb b/test/test_persistent.rb
index 05de13f3..1059ea14 100644
--- a/test/test_persistent.rb
+++ b/test/test_persistent.rb
@@ -56,7 +56,7 @@ class TestPersistent < Test::Unit::TestCase
 
     @client << @valid_request
 
-    assert_equal "HTTP/1.1 200 OK\r\nX-Header: Works\r\nTransfer-Encoding: chunked\r\n\r\n5\r\nHello\r\n7\r\nChunked\r\n0\r\n", lines(9)
+    assert_equal "HTTP/1.1 200 OK\r\nX-Header: Works\r\nTransfer-Encoding: chunked\r\n\r\n5\r\nHello\r\n7\r\nChunked\r\n0\r\n\r\n", lines(10)
   end
 
   def test_no_chunked_in_http10
@@ -74,7 +74,7 @@ class TestPersistent < Test::Unit::TestCase
 
     @client << @valid_request
 
-    assert_equal "HTTP/1.1 200 OK\r\nX-Header: Works\r\nTransfer-Encoding: chunked\r\n\r\n5\r\nHello\r\n#{str.size.to_s(16)}\r\n#{str}\r\n0\r\n", lines(9)
+    assert_equal "HTTP/1.1 200 OK\r\nX-Header: Works\r\nTransfer-Encoding: chunked\r\n\r\n5\r\nHello\r\n#{str.size.to_s(16)}\r\n#{str}\r\n0\r\n\r\n", lines(10)
 
   end