diff --git a/lc123/cloud/app/plugin/form/sys/MaterialListPlugin.java b/lc123/cloud/app/plugin/form/sys/MaterialListPlugin.java
index 87620be..ca011f2 100644
--- a/lc123/cloud/app/plugin/form/sys/MaterialListPlugin.java
+++ b/lc123/cloud/app/plugin/form/sys/MaterialListPlugin.java
@@ -229,7 +229,7 @@ public class MaterialListPlugin extends AbstractListPlugin implements Plugin {
             BillShowParameter parameter = e.getParameter();
             parameter.setCustomParam("copySrcBillName",bd_material.getString("name"));
             parameter.setCustomParam("copySrcBillNumber",bd_material.getString("number"));
-            this.getView().getFormShowParameter().setCustomParam("operateKey", "copyandchange");
+            parameter.setCustomParam("operateKey", "copyandchange");
         }
 
     }