diff --git a/apps/wpm/filters.py b/apps/wpm/filters.py
index ea572e57..a89790cf 100644
--- a/apps/wpm/filters.py
+++ b/apps/wpm/filters.py
@@ -19,6 +19,7 @@ class SfLogExpFilter(filters.FilterSet):
     class Meta:
         model = SfLogExp
         fields = {
+            "sflog": ["exact"],
             "sflog__mgroup": ["exact"],
             "sflog__mgroup__name": ["exact"],
             "happen_time": ["day", "month", "year"],