diff --git a/s3tests/functional/test_s3.py b/s3tests/functional/test_s3.py
index 48452ac..2b1c575 100644
--- a/s3tests/functional/test_s3.py
+++ b/s3tests/functional/test_s3.py
@@ -1500,6 +1500,42 @@ def test_post_object_authenticated_request():
 	got = key.get_contents_as_string()
 	eq(got, 'bar')
 
+@attr(resource='object')
+@attr(method='post')
+@attr(operation='authenticated browser based upload via POST request, no content-type header')
+@attr(assertion='succeeds and returns written data')
+def test_post_object_authenticated_no_content_type():
+	bucket = get_new_bucket()
+
+	url = _get_post_url(s3.main, bucket)
+
+	utc = pytz.utc
+	expires = datetime.datetime.now(utc) + datetime.timedelta(seconds=+6000)
+
+	policy_document = {"expiration": expires.strftime("%Y-%m-%dT%H:%M:%SZ"),\
+	"conditions": [\
+	{"bucket": bucket.name},\
+	["starts-with", "$key", "foo"],\
+	{"acl": "private"},\
+	["content-length-range", 0, 1024]\
+	]\
+	}
+
+	json_policy_document = json.JSONEncoder().encode(policy_document)
+	policy = base64.b64encode(json_policy_document)
+	conn = s3.main
+	signature = base64.b64encode(hmac.new(conn.aws_secret_access_key, policy, sha).digest())
+
+	payload = OrderedDict([ ("key" , "foo.txt"),("AWSAccessKeyId" , conn.aws_access_key_id),\
+	("acl" , "private"),("signature" , signature),("policy" , policy),\
+	('file', ('bar'))])
+
+	r = requests.post(url, files = payload)
+	eq(r.status_code, 204)
+	key = bucket.get_key("foo.txt")
+	got = key.get_contents_as_string()
+	eq(got, 'bar')
+
 @attr(resource='object')
 @attr(method='post')
 @attr(operation='authenticated browser based upload via POST request, bad access key')