diff --git a/pkg/downloader/chart_downloader_test.go b/pkg/downloader/chart_downloader_test.go
index ecea38917..144ff1b37 100644
--- a/pkg/downloader/chart_downloader_test.go
+++ b/pkg/downloader/chart_downloader_test.go
@@ -197,6 +197,7 @@ func TestDownloadTo(t *testing.T) {
 		},
 	}
 	cname := "/signtest-0.1.0.tgz"
+	// Distinguish the server's file directory from the downloaded directory.
 	dest := srv.Root() + "/dest"
 	os.Mkdir(dest, 0755)