diff --git a/tests/queries/0_stateless/01281_sum_nullable.reference b/tests/queries/0_stateless/01281_sum_nullable.reference
new file mode 100644
index 00000000000..be8b67fd296
--- /dev/null
+++ b/tests/queries/0_stateless/01281_sum_nullable.reference
@@ -0,0 +1,6 @@
+45
+45
+45
+1
+45
+\N
diff --git a/tests/queries/0_stateless/01281_sum_nullable.sql b/tests/queries/0_stateless/01281_sum_nullable.sql
new file mode 100644
index 00000000000..35d593da75d
--- /dev/null
+++ b/tests/queries/0_stateless/01281_sum_nullable.sql
@@ -0,0 +1,6 @@
+SELECT sumKahan(toFloat64(number)) FROM numbers(10);
+SELECT sumKahan(toNullable(toFloat64(number))) FROM numbers(10);
+SELECT sum(toNullable(number)) FROM numbers(10);
+SELECT sum(x) FROM (SELECT 1 AS x UNION ALL SELECT NULL);
+SELECT sum(number) FROM numbers(10);
+SELECT sum(number < 1000 ? NULL : number) FROM numbers(10);