diff --git a/roles/usermanagement/templates/keycloak.yaml b/roles/usermanagement/templates/keycloak.yaml
index 3f3eea8..bbc374c 100644
--- a/roles/usermanagement/templates/keycloak.yaml
+++ b/roles/usermanagement/templates/keycloak.yaml
@@ -18,6 +18,7 @@ services:
       - KC_DB_PASSWORD={{ keycloak_postgres_password }}
       - KC_HEALTH_ENABLED=true
       - KC_METRICS_ENABLED=true
+      - KC_DB=postgres
       - KEYCLOAK_LOGLEVEL=WARN
     restart: unless-stopped
     ports: