diff --git a/apps/pm/filters.py b/apps/pm/filters.py
index 8bb70c76..875cf426 100644
--- a/apps/pm/filters.py
+++ b/apps/pm/filters.py
@@ -19,6 +19,8 @@ class MtaskFilter(filters.FilterSet):
             "mgroup__process": ["exact"],
             "mgroup__process__cate": ["exact"],
             "material": ["exact"],
+            "material__type": ["exact"],
+            "material__is_hidden": ["exact"],
             "parent": ["exact", "isnull"]
         }