diff --git a/apps/wpm/filters.py b/apps/wpm/filters.py
index 0e32bc8b..bfb9dd74 100644
--- a/apps/wpm/filters.py
+++ b/apps/wpm/filters.py
@@ -178,7 +178,8 @@ class BatchStFilter(filters.FilterSet):
             "last_time": ["exact", "gte", "lte"],
             "update_time": ["exact", "gte", "lte"],
             "material_start": ["exact"],
-            "material_start__type": ["exact"]
+            "material_start__type": ["exact"],
+            "material_start__process": ["exact"]
         }
 
     def filter_batch(self, queryset, name, value):