diff --git a/system1-factory/api/routes/pageAccessRoutes.js b/system1-factory/api/routes/pageAccessRoutes.js
index 121834e..3445407 100644
--- a/system1-factory/api/routes/pageAccessRoutes.js
+++ b/system1-factory/api/routes/pageAccessRoutes.js
@@ -69,9 +69,12 @@ router.get('/users/:userId/page-access', requireAuth, async (req, res) => {
       return res.json({ success: true, data: { user, pageAccess } });
     }
 
-    // 사용자의 부서 조회
+    // 사용자의 부서 조회 (workers 우선, 없으면 sso_users fallback)
     const [workerRows] = await db.query(`
-      SELECT w.department_id FROM workers w WHERE w.user_id = ?
+      SELECT COALESCE(w.department_id, su2.department_id, 0) AS department_id
+      FROM sso_users su2
+      LEFT JOIN workers w ON su2.user_id = w.user_id
+      WHERE su2.user_id = ?
     `, [userId]);
     const departmentId = workerRows[0]?.department_id || 0;