diff --git a/hb_server/apps/wpm/views.py b/hb_server/apps/wpm/views.py
index ae57705..fc3653d 100644
--- a/hb_server/apps/wpm/views.py
+++ b/hb_server/apps/wpm/views.py
@@ -179,7 +179,7 @@ class WProductViewSet(ListModelMixin, GenericViewSet):
     perms_map={'*':'*'}
     queryset = WProduct.objects.select_related('step', 'material').filter(is_hidden=False)
     serializer_class = WProductListSerializer
-    filterset_fields = ['step', 'subproduction_plan', 'material', 'step__process', 'act_state']
+    filterset_fields = ['step', 'subproduction_plan', 'material', 'step__process', 'act_state', 'material__type']
     search_fields = ['number']
     ordering_fields = ['id']
     ordering = ['id']