diff --git a/safety-eval-domain/src/main/java/org/qinan/safetyeval/domain/service/OrgPersonnelDomainService.java b/safety-eval-domain/src/main/java/org/qinan/safetyeval/domain/service/OrgPersonnelDomainService.java
index 902402d..ec65b55 100644
--- a/safety-eval-domain/src/main/java/org/qinan/safetyeval/domain/service/OrgPersonnelDomainService.java
+++ b/safety-eval-domain/src/main/java/org/qinan/safetyeval/domain/service/OrgPersonnelDomainService.java
@@ -44,7 +44,7 @@ public class OrgPersonnelDomainService {
         }
         assertAccountUnique(entity.getAccount(), entity.getId());
         mergeForModify(existing, entity);
-        entity.setJoinWorkDate(existing.getJoinWorkDate());
+        existing.setJoinWorkDate(existing.getJoinWorkDate());
         return orgPersonnelGateway.modify(existing);
     }