diff --git a/protocol/errors.json b/protocol/errors.json
index a0aae76..d3b4ae7 100644
--- a/protocol/errors.json
+++ b/protocol/errors.json
@@ -27,6 +27,7 @@
   "40021": "Feature requires a newer platform version",
   "40022": "API Streamer has been shut down",
   "40023": "Action requires a newer protocol version",
+  "40024": "unable to get channel history (incompatible site)",
   "40030": "Invalid publish request (unspecified)",
   "40031": "Invalid publish request (invalid client-specified id)",
   "40032": "Invalid publish request (impermissible extras field)",
@@ -189,6 +190,7 @@
   "90005": "unable to recover channel (no matching epoch)",
   "90006": "unable to recover channel (unbounded request)",
   "90007": "channel operation failed (no response from server)",
+  "90008": "unable to get channel history (attach point not found)",
   "90010": "maximum number of channels per connection/request exceeded",
   "90021": "exceeded maximum permitted account-wide rate of creating new channels",
   "91000": "unable to enter presence channel (no clientId)",