diff --git a/packages/translators/schema.test.ts b/packages/translators/schema.test.ts
index 6d37992c..4ca84adc 100644
--- a/packages/translators/schema.test.ts
+++ b/packages/translators/schema.test.ts
@@ -3,5 +3,6 @@ import { assertEquals } from '@std/assert';
 import { languageSchema } from './schema.ts';
 
 Deno.test('languageSchema', () => {
-  assertEquals(languageSchema.safeParse('en').success, true);
+  assertEquals(languageSchema.safeParse('pt').success, true);
+  assertEquals(languageSchema.safeParse('PT').success, false);
 });