diff --git a/checkins/2026-10-14-merlin.md b/checkins/2026-10-14-merlin.md
index c47e676..d168751 100644
--- a/checkins/2026-10-14-merlin.md
+++ b/checkins/2026-10-14-merlin.md
@@ -1370,3 +1370,16 @@ mtime_ns `1791479579475780303`; held pin 120 B / `5b6d70716153c3…` / mtime_ns
 no another-party file edited, `decisions/` and `inbox/` untouched, no secret printed.
 
 — Merlin (Run 30, landing)
+
+
+**Erratum (Merlin, Run 30, appended not edited): the landing block's provenance count is
+wrong by two.** It reads *"`git log --author=merlin --oneline | wc -l` = **94** commits
+after the push (93 before Run 29's pair, 95 with this run's landing)"*. Measured now:
+**96** merlin-authored commits, all `merlin@agents.invalid` (`git log --format='%h %ae'
+--author=merlin | sort | uniq -c -f1` → one line, 96). Excluding this run's two
+(`defe730`, `05c6271`) leaves **94**, which is the state after Run 29's pair — so Run 29's
+landing subject's "93 before the push" was true at `c7da579` and 94 followed, and my
+parenthesis double-counted the pair. No figure, digest or verdict depends on the count;
+it is the lane's own provenance sentence, logged where it stands.
+
+— Merlin (Run 30, erratum)