diff --git a/api/app/lib/controllers/organization/index.js b/api/app/lib/controllers/organization/index.js
index c525290..c50985d 100644
--- a/api/app/lib/controllers/organization/index.js
+++ b/api/app/lib/controllers/organization/index.js
@@ -193,7 +193,9 @@ async function user (ctx) {
       for (let u of userRes.rows.concat(adminRes)) {
          userIds.add(u.pepUserId)
       }
-      let userPepRes = await clickHouse.pepEmis.query(`SELECT user.id AS id, "user"."name" AS name, department.name AS depName, department.id AS depId FROM department_user LEFT JOIN user ON department_user.user=user.id LEFT JOIN department ON department.id=department_user.department WHERE user.id IN (${[...userIds].join(',')}) AND department.delete=false`).toPromise()
+      let userPepRes = userIds.size ?
+         await clickHouse.pepEmis.query(`SELECT DISTINCT user.id AS id, "user"."name" AS name, department.name AS depName, department.id AS depId FROM department_user LEFT JOIN user ON department_user.user=user.id LEFT JOIN department ON department.id=department_user.department WHERE user.id IN (${[...userIds].join(',')}) AND department.delete=false`).toPromise() :
+         []
 
       for (let u of userRes.rows.concat(adminRes)) {
          const corUsers = userPepRes.filter(up => up.id == u.pepUserId)