diff --git a/ansible/group_vars/environment_name_delius_mis_preproduction_stage_boe_primarydb.yml b/ansible/group_vars/environment_name_delius_mis_preproduction_stage_boe_primarydb.yml
index ceea05864..45b60433c 100644
--- a/ansible/group_vars/environment_name_delius_mis_preproduction_stage_boe_primarydb.yml
+++ b/ansible/group_vars/environment_name_delius_mis_preproduction_stage_boe_primarydb.yml
@@ -33,3 +33,4 @@ oracle_software:
     version: 12.2.0.1.43
     filename: p6880880_190000_Linux-x86-64.12.2.0.1.43.zip
 db_backup_s3_bucket_name: "{{ environment_name }}-oracle-boe-db-backups"
+source_db: "STGBOE"