diff --git a/test/labels-reconcile.test.sh b/test/labels-reconcile.test.sh
index 696fb9f..6ac2269 100755
--- a/test/labels-reconcile.test.sh
+++ b/test/labels-reconcile.test.sh
@@ -1548,7 +1548,9 @@ expect "...and does print reconciled." \
 # exited 0 (@codex-reviewer-andresmgsl, #192 review).
 stale_fail_probe() {
   (
-    GITHUB_EVENT_NAME=schedule
+    # No event name: the script stopped reading GITHUB_EVENT_NAME when the
+    # bootstrap moved to the BOOTSTRAP input (#215); default no is the
+    # non-bootstrap sweep this probe simulates.
     REPO=owner/repo
     LABELS_CONF=.github/labels.conf
     CEREMONY_FORGE=github