1 files changed, 1 insertions, 1 deletions
diff --git a/flags/long_test.ts b/flags/long_test.ts
index fb26a4c07..5b14fc630 100755
--- a/flags/long_test.ts
+++ b/flags/long_test.ts
@@ -3,7 +3,7 @@ import { test } from "../testing/mod.ts";
 import { assertEquals } from "../testing/asserts.ts";
 import { parse } from "./mod.ts";
 
-test(function longOpts() {
+test(function longOpts(): void {
   assertEquals(parse(["--bool"]), { bool: true, _: [] });
   assertEquals(parse(["--pow", "xixxle"]), { pow: "xixxle", _: [] });
   assertEquals(parse(["--pow=xixxle"]), { pow: "xixxle", _: [] });