diff --git a/ViewTickets.md b/ViewTickets.md
index 3f90dbf..61b0075 100644
--- a/ViewTickets.md
+++ b/ViewTickets.md
@@ -90,6 +90,7 @@ Combined queries:
  * [leases]query:status!=closed&keywords~=leases ([count)](TicketQuery)(status!=closed&keywords~=leases,): related to leases or garbage collection
  * [accounting]query:status!=closed&keywords~=accounting ([count)](TicketQuery)(status!=closed&keywords~=accounting,): related to storage accounting
  * [logging]query:status!=closed&keywords~=logging ([count)](TicketQuery)(status!=closed&keywords~=logging,): related to logging
+ * [error]query:status!=closed&keywords~=error ([count)](TicketQuery)(status!=closed&keywords~=error,): related to error reporting (to end-users)
  * [statistics]query:status!=closed&keywords~=statistics ([count)](TicketQuery)(status!=closed&keywords~=statistics,): related to usage statistics
  * [cp]query:status!=closed&keywords~=cp ([count)](TicketQuery)(status!=closed&keywords~=cp,): `tahoe cp` command
  * [tahoe-ls]query:status!=closed&keywords~=tahoe-ls ([count)](TicketQuery)(status!=closed&keywords~=tahoe-ls,): `tahoe ls` command