diff --git a/apps/wpm/filters.py b/apps/wpm/filters.py
index b1818d93..91a59c68 100644
--- a/apps/wpm/filters.py
+++ b/apps/wpm/filters.py
@@ -38,7 +38,7 @@ class WMaterialFilter(filters.FilterSet):
             "material__type": ["exact", "in"],
             "material__process": ["exact", "in"],
             "belong_dept": ["exact"],
-            "belong_dept__name": ["exact"],
+            "belong_dept__name": ["exact", "in"],
             "batch": ["exact"],
             "count": ["gte", "lte", "exact"]
         }