diff --git a/index.test-d.ts b/index.test-d.ts
index eb80535..bd22ba0 100644
--- a/index.test-d.ts
+++ b/index.test-d.ts
@@ -1,8 +1,8 @@
 import {expectType} from 'tsd';
 import cliTruncate from './index.js';
 
-expectType<string>(cliTruncate('unicorn', 4));
-expectType<string>(cliTruncate('unicorn', 4, {position: 'start'}));
-expectType<string>(cliTruncate('unicorn', 4, {position: 'middle'}));
-expectType<string>(cliTruncate('unicorn', 4, {position: 'end'}));
-expectType<string>(cliTruncate('unicorn', 4, {position: 'end', preferTruncationOnSpace: true}));
+expectType(cliTruncate('unicorn', 4));
+expectType(cliTruncate('unicorn', 4, {position: 'start'}));
+expectType(cliTruncate('unicorn', 4, {position: 'middle'}));
+expectType(cliTruncate('unicorn', 4, {position: 'end'}));
+expectType(cliTruncate('unicorn', 4, {position: 'end', preferTruncationOnSpace: true}));