diff --git a/apps/inm/views.py b/apps/inm/views.py
index febe01e5..206dcd3c 100644
--- a/apps/inm/views.py
+++ b/apps/inm/views.py
@@ -184,7 +184,12 @@ class MIOItemViewSet(ListModelMixin, BulkCreateModelMixin, BulkDestroyModelMixin
     serializer_class = MIOItemSerializer
     create_serializer_class = MIOItemCreateSerializer
     select_related_fields = ['warehouse', 'mio', 'material']
-    filterset_fields = ['warehouse', 'mio', 'material']
+    filterset_fields = {
+        "warehouse": ["exact"],
+        "mio": ["exact"],
+        "material": ["exact"],
+        "test_date": ["isnull", "exact"]
+    }
     ordering = ['create_time']
 
     def perform_destroy(self, instance):