diff --git a/httpretty/core.py b/httpretty/core.py
index b2c5778..df6b15b 100644
--- a/httpretty/core.py
+++ b/httpretty/core.py
@@ -363,10 +363,10 @@ class fakesock(object):
             if not is_parsing_headers:
                 if len(self._sent_data) > 1:
                     headers = utf8(last_requestline(self._sent_data))
-                    meta = dict(self._entry.request.headers)
+                    meta = self._entry.request.headers
                     body = utf8(self._sent_data[-1])
                     if meta.get('transfer-encoding', '') == 'chunked':
-                        if not body.isdigit() and body != '\r\n' and body != '0\r\n\r\n':
+                        if not body.isdigit() and body != b'\r\n' and body != b'0\r\n\r\n':
                             self._entry.request.body += body
                     else:
                         self._entry.request.body += body
diff --git a/tests/functional/test_requests.py b/tests/functional/test_requests.py
index 50027c9..daada92 100644
--- a/tests/functional/test_requests.py
+++ b/tests/functional/test_requests.py
@@ -575,7 +575,7 @@ def test_httpretty_should_allow_registering_regexes_with_streaming_responses():
     os.environ['DEBUG'] = 'true'
 
     def my_callback(request, url, headers):
-        request.body.should.equal('hithere')
+        request.body.should.equal(b'hithere')
         return 200, headers, "Received"
 
     HTTPretty.register_uri(
@@ -592,7 +592,7 @@ def test_httpretty_should_allow_registering_regexes_with_streaming_responses():
         'https://api.yipit.com/v1/deal;brand=gap?first_name=chuck&last_name=norris',
         data=gen(),
     )
-    expect(response.content).to.equal("Received")
+    expect(response.content).to.equal(b"Received")
     expect(HTTPretty.last_request.method).to.equal('POST')
     expect(HTTPretty.last_request.path).to.equal('/v1/deal;brand=gap?first_name=chuck&last_name=norris')