diff --git a/scripts/health-latency-readonly-psql.sh b/scripts/health-latency-readonly-psql.sh
index 3a56f17..a41bef8 100755
--- a/scripts/health-latency-readonly-psql.sh
+++ b/scripts/health-latency-readonly-psql.sh
@@ -2,6 +2,7 @@
 # Read-only evidence queries on stdin; never migrations. No credentials emitted.
 set -euo pipefail
 docker exec -i meshcore-infra-timescaledb-1 sh -c '
-  PGOPTIONS="-c default_transaction_read_only=on -c statement_timeout=30000 -c application_name=health-latency-audit" \
+  PGAPPNAME=health-latency-audit \
+  PGOPTIONS="-c default_transaction_read_only=on -c statement_timeout=30000 -c idle_in_transaction_session_timeout=15000" \
     psql -X -v ON_ERROR_STOP=1 -P pager=off -U "$POSTGRES_USER" -d "$POSTGRES_DB"
 '