diff --git a/pkg/storage/stores/shipper/bloomshipper/client_test.go b/pkg/storage/stores/shipper/bloomshipper/client_test.go
index a18c296b27fe..cd77339c0932 100644
--- a/pkg/storage/stores/shipper/bloomshipper/client_test.go
+++ b/pkg/storage/stores/shipper/bloomshipper/client_test.go
@@ -349,7 +349,7 @@ type mockListClient struct {
 	counter int
 }
 
-func (c *mockListClient) List(_ context.Context, prefix string, delimiter string) ([]client.StorageObject, []client.StorageCommonPrefix, error) {
+func (c *mockListClient) List(_ context.Context, prefix string, _ string) ([]client.StorageObject, []client.StorageCommonPrefix, error) {
 	c.counter++
 	objects := []client.StorageObject{
 		{Key: path.Join(path.Base(prefix), "object")},