diff --git a/mes/hd/nladmin-system/src/main/java/org/nl/wms/pdm/service/impl/WorkOrderServiceImpl.java b/mes/hd/nladmin-system/src/main/java/org/nl/wms/pdm/service/impl/WorkOrderServiceImpl.java
index d199238a..bfcd3864 100644
--- a/mes/hd/nladmin-system/src/main/java/org/nl/wms/pdm/service/impl/WorkOrderServiceImpl.java
+++ b/mes/hd/nladmin-system/src/main/java/org/nl/wms/pdm/service/impl/WorkOrderServiceImpl.java
@@ -163,7 +163,7 @@ public class WorkOrderServiceImpl implements WorkOrdereService {
         JSONObject old2 = mstTab.query("workorder_id='"+workorder_id+"'").uniqueResult(0);
         if(old2!=null){
            String pcsn_old = old2.getString("pcsn");
-           if(!pcsn_old.equals("pcsn")){
+           if(!pcsn_old.equals(pcsn)){
                this.updatePcsn(whereJson);
            }
         }