diff --git a/stream.py b/stream.py
index b892000..5d4f0aa 100755
--- a/stream.py
+++ b/stream.py
@@ -87,7 +87,10 @@ def get_proxy_url(proxy, current, path):
     return presp.text
 
 def upstream_type(current, proxy):
-    resp = requests.head(current, proxies=proxy.req)
+    if proxy is None:
+        resp = requests.head(current)
+    else:
+        resp = requests.head(current, proxies=proxy.req)
     return resp.headers.get("Content-Type", "binary/octet-stream")
  
 def rewrite(current, provider, proxy, ctype):