diff --git a/adm/shop_admin/itemform.php b/adm/shop_admin/itemform.php
index c9fe164c4..ca4356cdb 100644
--- a/adm/shop_admin/itemform.php
+++ b/adm/shop_admin/itemform.php
@@ -800,7 +800,7 @@ function codedupcheck(id)
 
     $.post(
         "./codedupcheck.php",
-        { id: id },
+        { it_id: id },
         function(data)
         {
             if(data) {