diff --git a/cheroot/server.py b/cheroot/server.py
index 51cc1766ab..61c1e34482 100644
--- a/cheroot/server.py
+++ b/cheroot/server.py
@@ -1344,6 +1344,9 @@ def _conditional_error(self, req, response):
         try:
             req.simple_response(response)
         except socket.error:
+            # See #210. Prevents DOS attack via uncaught
+            # socket.error caused by silent connections
+            # lasting beyond connection timeout length.
             pass
         except errors.FatalSSLAlert:
             pass