diff --git a/apps/mtm/filters.py b/apps/mtm/filters.py
index 8f718a4c..39b9749a 100644
--- a/apps/mtm/filters.py
+++ b/apps/mtm/filters.py
@@ -15,6 +15,7 @@ class MaterialFilter(filters.FilterSet):
             "is_hidden": ["exact"],
             "is_assemb": ["exact"],
             "need_route": ["exact"],
+            "process": ["exact", "in", "isnull"],
             "orderitem_material__order": ['exact'],
             "pu_orderitem_material__pu_order": ["exact"],
             "route_material_out__mgroup": ["exact"]