diff --git a/postgres-upgrade/Dockerfile b/postgres-upgrade/Dockerfile
index b4bdcfe..07706c2 100644
--- a/postgres-upgrade/Dockerfile
+++ b/postgres-upgrade/Dockerfile
@@ -27,6 +27,7 @@ COPY ./repos/audit-manager/db_upgrade_scripts .
 COPY ./repos/resident-services/db_upgrade_scripts .
 
 ENV MOSIP_DB_NAME=
+ENV DB_UNAME=
 ENV DB_SERVERIP=
 ENV DB_PORT=
 ENV SU_USER=postgres