diff --git a/judge/runguard_test/runguard_test.sh b/judge/runguard_test/runguard_test.sh
index 2b50594210..559720b556 100755
--- a/judge/runguard_test/runguard_test.sh
+++ b/judge/runguard_test/runguard_test.sh
@@ -2,6 +2,12 @@
 
 cd "$(dirname "${BASH_SOURCE}")"
 
+echo DEBUG
+whoami
+echo
+id domjudge-run-0
+echo DEBUG
+
 RUNGUARD=../runguard
 LOG1="$(mktemp)"
 LOG2="$(mktemp)"