diff --git a/tests/expressions/tests.py b/tests/expressions/tests.py
index 463150f8a1..08ea0a51d3 100644
--- a/tests/expressions/tests.py
+++ b/tests/expressions/tests.py
@@ -670,6 +670,18 @@ class BasicExpressionsTests(TestCase):
         # contain nested aggregates.
         self.assertNotIn('GROUP BY', sql)
 
+    @skipUnlessDBFeature('supports_over_clause')
+    def test_aggregate_rawsql_annotation(self):
+        with self.assertNumQueries(1) as ctx:
+            aggregate = Company.objects.annotate(
+                salary=RawSQL('SUM(num_chairs) OVER (ORDER BY num_employees)', []),
+            ).aggregate(
+                count=Count('pk'),
+            )
+            self.assertEqual(aggregate, {'count': 3})
+        sql = ctx.captured_queries[0]['sql']
+        self.assertNotIn('GROUP BY', sql)
+
     def test_explicit_output_field(self):
         class FuncA(Func):
             output_field = CharField()