diff --git a/lib/io/ioserver.js b/lib/io/ioserver.js
index 49cd369f..9ccf6bdd 100644
--- a/lib/io/ioserver.js
+++ b/lib/io/ioserver.js
@@ -66,6 +66,7 @@ function throttleIP(sock) {
             reason: "Your IP address is connecting too quickly.  Please "+
                     "wait 10 seconds before joining again."
         });
+        sock.disconnect();
         return true;
     }