diff --git a/modules/purchase_trade/view/assay_tree.xml b/modules/purchase_trade/view/assay_tree.xml
index 1bbfac3..621c570 100644
--- a/modules/purchase_trade/view/assay_tree.xml
+++ b/modules/purchase_trade/view/assay_tree.xml
@@ -4,5 +4,5 @@
     <field name="type"/>
     <field name="status"/>
     <field name="laboratory"/>
-    <field name="filename"/>
+    <field name="document"/>
 </tree>
\ No newline at end of file