diff --git a/tests/postgres_tests/test_aggregates.py b/tests/postgres_tests/test_aggregates.py
index fc3bb57d28..eb07c44595 100644
--- a/tests/postgres_tests/test_aggregates.py
+++ b/tests/postgres_tests/test_aggregates.py
@@ -1,6 +1,6 @@
 import json
 
-from django.db.models import CharField
+from django.db.models import CharField, Q
 from django.db.models.expressions import F, OuterRef, Subquery, Value
 from django.db.models.functions import Cast, Concat, Substr
 from django.test.utils import Approximate