diff --git a/events/forms.py b/events/forms.py
index e52143ba..4853e060 100644
--- a/events/forms.py
+++ b/events/forms.py
@@ -318,7 +318,7 @@ class FilterForm(forms.Form):
             val = self.cleaned_data[l_field]
             _format_kwargs = {
                 'db_table': model._meta.db_table,
-                'attname': l_field,
+                'attname': fields_mapping.get(l_field, l_field),
                 'val': self.make_ids_in_sql_format(val),
             }
             where.append(