diff --git a/roundcube/roundcubedb-deployment.yaml b/roundcube/roundcubedb-deployment.yaml
index 036308f..e76df69 100644
--- a/roundcube/roundcubedb-deployment.yaml
+++ b/roundcube/roundcubedb-deployment.yaml
@@ -34,7 +34,7 @@ spec:
             secretKeyRef:
               name: roundcubemail-shared-secret
               key: DB_PASSWORD
-        - name: PG_DATA
+        - name: PGDATA
           value: /var/lib/postgresql/data/pgdata
         ports:
         - containerPort: 5432