diff --git a/apps/em/filters.py b/apps/em/filters.py
index 27211db7..0e6c30af 100644
--- a/apps/em/filters.py
+++ b/apps/em/filters.py
@@ -10,6 +10,7 @@ class EquipFilterSet(filters.FilterSet):
             "keeper": ["exact"],
             "type": ["exact"],
             "power_kw": ["gte"],
+            "belong_dept": ["exact"]
         }
     
     def filter_tag(self, queryset, name, value):