diff --git a/tangelo/tangelo/ws4py/websocket.py b/tangelo/tangelo/ws4py/websocket.py
index <HASH>..<HASH> 100644
--- a/tangelo/tangelo/ws4py/websocket.py
+++ b/tangelo/tangelo/ws4py/websocket.py
@@ -240,6 +240,9 @@ class WebSocket(object):
         if self.terminated or self.sock is None:
             raise RuntimeError("Cannot send on a terminated websocket")
 
+        # This fixes an error in the ws4py package - not yet in the upstream
+        # package.
+        #
         # blocking mode, never throw WantWriteError
         self.sock.setblocking(1)
Added a comment marking the change to upstream ws4py