diff --git a/services/postgres.hcl b/services/postgres.hcl
index 14f5058..c931a27 100644
--- a/services/postgres.hcl
+++ b/services/postgres.hcl
@@ -117,9 +117,10 @@ EOH
       }
 
       env {
-        POSTGRES_DB = "${NOMAD_HOST_db}"
+        POSTGRES_DB = "postgres"
+        POSTGRES_HOST = "${NOMAD_IP_db}"
         POSTGRES_USER = "postgres"
-        POSTGRES_PASSWORD = "${var.default_password}"
+        POSTGRES_PASSWORD = "${var.pg_password}"
         POSTGRES_CLUSTER = "TRUE"
         POSTGRES_EXTRA_OPTS = ""
         HEALTHCHECK_PORT = "${NOMAD_PORT_backup_healthckeck}"