diff --git a/apps/ecm/filters.py b/apps/ecm/filters.py
index 09475dd4..7a059b00 100644
--- a/apps/ecm/filters.py
+++ b/apps/ecm/filters.py
@@ -13,6 +13,7 @@ class EventFilterSet(filters.FilterSet):
             "cates": ["exact", 'in'],
             "cates__code": ["exact", 'in'],
             "area": ["exact", "in"],
+            "mark": ["exact"]
         }
 
     def filter_is_handled(self, queryset, name, value):