diff --git a/protocol/errors.json b/protocol/errors.json
index 3c432ec9..4b21e846 100644
--- a/protocol/errors.json
+++ b/protocol/errors.json
@@ -181,6 +181,7 @@
   "80022": "unable to continue current comet connection",
   "80023": "unable to resume connection from a different site",
   "80024": "protocol version is no longer supported",
+  "80025": "exceeded maximum concurrent connections permitted for this token",
   "80030": "client restriction not satisfied",
 
   "90000": "channel operation failed",