diff --git a/docs/event-counters.md b/docs/event-counters.md
index fa90d5d..612010a 100644
--- a/docs/event-counters.md
+++ b/docs/event-counters.md
@@ -299,6 +299,7 @@ The `resolve` event group consists of operations related to translating a btrfs
  * `resolve_large`: The `LOGICAL_INO` ioctl returned more than 2730 results (the limit of the v1 ioctl).
  * `resolve_ms`: Total time spent in the `LOGICAL_INO` ioctl (i.e. wallclock time, not kernel CPU time).
  * `resolve_ok`: The `LOGICAL_INO` ioctl returned success.
+ * `resolve_overflow`: The `LOGICAL_INO` ioctl returned more than 655050 extents (the limit of the v2 ioctl).
  * `resolve_toxic`: The `LOGICAL_INO` ioctl took more than 0.1 seconds of kernel CPU time.
 
 root