diff --git a/deploy/sentry-slack-alert.sh b/deploy/sentry-slack-alert.sh
index 8172b09..9dc0d18 100755
--- a/deploy/sentry-slack-alert.sh
+++ b/deploy/sentry-slack-alert.sh
@@ -2,7 +2,9 @@
 # Route every Waving Hands issue to a Slack channel: new issues (any level or
 # priority), regressions, and reappearances. Creates one Sentry workflow
 # via the alerts API. The token never leaves your shell:
-#   SENTRY_TOKEN=sntryu_... SLACK_CHANNEL_ID=C... deploy/sentry-slack-alert.sh [#channel]
+#   SENTRY_TOKEN=sntryu_... deploy/sentry-slack-alert.sh [#channel]
+# The channel defaults to #wavinghands-notifications (C0C3R3B2MQB); pass
+# SLACK_CHANNEL_ID with the channel name to route elsewhere.
 # The token needs the alerts:write scope (an org auth token from
 # https://locallygrownnet.sentry.io/settings/auth-tokens/), and Slack must
 # already be connected to the org under Settings → Integrations.
@@ -10,7 +12,7 @@ set -euo pipefail
 : "${SENTRY_TOKEN:?SENTRY_TOKEN=sntryu_... is required (alerts:write)}"
 ORG="${SENTRY_ORG:-locallygrownnet}"
 PROJECT="${SENTRY_PROJECT:-waving-hands}"
-CHANNEL="${1:-#waving-hands-notifications}"
+CHANNEL="${1:-#wavinghands-notifications}"
 API="https://us.sentry.io/api/0/organizations/$ORG"
 AUTH="Authorization: Bearer $SENTRY_TOKEN"
 
@@ -18,7 +20,7 @@ AUTH="Authorization: Bearer $SENTRY_TOKEN"
 # project's error detector is looked up by project id; a workflow is bound
 # to its detectors by PUT after creation.
 SLACK_ID="${SENTRY_SLACK_INTEGRATION:-345334}"
-CHANNEL_ID="${SLACK_CHANNEL_ID:?SLACK_CHANNEL_ID=C... is required (the Slack ID of the channel)}"
+CHANNEL_ID="${SLACK_CHANNEL_ID:-C0C3R3B2MQB}"
 PROJECT_ID="${SENTRY_PROJECT_ID:-4512133232787456}"
 echo "Slack integration $SLACK_ID; project $PROJECT_ID; channel $CHANNEL ($CHANNEL_ID)"