diff --git a/roles/xos-clear-db/tasks/main.yml b/roles/xos-clear-db/tasks/main.yml
index 3fb46a4..5a6ea18 100644
--- a/roles/xos-clear-db/tasks/main.yml
+++ b/roles/xos-clear-db/tasks/main.yml
@@ -7,7 +7,7 @@
     dest: /tmp/xos_clear_db.sql
 
 - name: Run database cleanup script
-  command: "psql -U postgres -d xos -f /tmp/xos_clear_db.sql"
+  command: "su postgres -c 'psql -U postgres -d xos -f /tmp/xos_clear_db.sql'"
   tags:
     - skip_ansible_lint # test scenario destructive script