diff --git a/InvenTree/order/admin.py b/InvenTree/order/admin.py
index 3ab6383554..d8e51ca02c 100644
--- a/InvenTree/order/admin.py
+++ b/InvenTree/order/admin.py
@@ -174,6 +174,12 @@ class SalesOrderAdditionalLineItemAdmin(ImportExportModelAdmin):
         'reference'
     )
 
+    search_fields = [
+        'order__reference',
+        'order__customer__name',
+        'reference',
+    ]
+
     autocomplete_fields = ('order', )