diff --git a/requests/models.py b/requests/models.py
index 0b4958eb..076eeddb 100644
--- a/requests/models.py
+++ b/requests/models.py
@@ -681,6 +681,9 @@ class Response(object):
             while 1:
                 #XXX correct line size? (httplib has 64kb, seems insane)
                 pending_bytes = fp.readline(40).strip()
+                if pending_bytes == '':
+                    # No content, like a HEAD request. Break out.
+                    break
                 pending_bytes = int(pending_bytes, 16)
                 if pending_bytes == 0:
                     break
diff --git a/tests/test_requests.py b/tests/test_requests.py
index b1d1304d..a0395aea 100755
--- a/tests/test_requests.py
+++ b/tests/test_requests.py
@@ -801,7 +801,5 @@ class RequestsTestSuite(TestSetup, unittest.TestCase):
         r = requests.get(httpbin('status', '404'))
         r.text
 
-
-
 if __name__ == '__main__':
     unittest.main()
diff --git a/tests/test_requests_ext.py b/tests/test_requests_ext.py
index 1e25dbe6..2102a5ea 100644
--- a/tests/test_requests_ext.py
+++ b/tests/test_requests_ext.py
@@ -53,6 +53,12 @@ class RequestsTestSuite(unittest.TestCase):
         url = u'http://blip.fm/~1abvfu'
         requests.get(url)
 
+
+    def test_chunked_head_redirect(self):
+        url = "http://t.co/NFrx0zLG"
+        r = requests.head(url, allow_redirects=True)
+        self.assertEqual(r.status_code, 200)
+
 if __name__ == '__main__':
     unittest.main()