diff --git a/InvenTree/order/templates/order/so_attachments.html b/InvenTree/order/templates/order/so_attachments.html
index 89f09541d1..9c29fe5abe 100644
--- a/InvenTree/order/templates/order/so_attachments.html
+++ b/InvenTree/order/templates/order/so_attachments.html
@@ -53,8 +53,6 @@ loadAttachmentTable(
             });
         },
         onDelete: function(pk) {
-            var pk = button.attr('pk');
-
             constructForm(`/api/order/so/attachment/${pk}/`, {
                 method: 'DELETE',
                 confirmMessage: '{% trans "Confirm Delete Operation" %}',