diff --git a/daphne/http_protocol.py b/daphne/http_protocol.py
index 9986393..666ebf7 100755
--- a/daphne/http_protocol.py
+++ b/daphne/http_protocol.py
@@ -133,7 +133,7 @@ class WebRequest(http.Request):
         """
         if "status" in message:
             if self._got_response_start:
-                raise ValueError("Got multiple Response messages!")
+                raise ValueError("Got multiple Response messages for %s!" % self.reply_channel)
             self._got_response_start = True
             # Write code
             status_text = message.get("status_text", None)
diff --git a/daphne/server.py b/daphne/server.py
index 332b231..ab19d11 100755
--- a/daphne/server.py
+++ b/daphne/server.py
@@ -38,7 +38,6 @@ class Server(object):
             channel, message = self.channel_layer.receive_many(channels, block=False)
             if channel:
                 delay = 0
-                logging.debug("Server got message on %s", channel)
                 # Deal with the message
                 self.factory.dispatch_reply(channel, message)
         reactor.callLater(delay, self.backend_reader)