diff --git a/apps/pm/filters.py b/apps/pm/filters.py
index 417ae4a0..29e96d01 100644
--- a/apps/pm/filters.py
+++ b/apps/pm/filters.py
@@ -46,6 +46,7 @@ class MtaskFilter(filters.FilterSet):
         fields = {
             "state": ["exact", "in"],
             "route": ["exact"],
+            "route__material_in": ["exact"],
             "is_count_utask": ["exact"],
             "start_date": ["exact", "gte", "lte"],
             "end_date": ["exact", "gte", "lte"],