diff --git a/shared/i18n/index.ts b/shared/i18n/index.ts
index 9b94e344b..4c2b22ee4 100644
--- a/shared/i18n/index.ts
+++ b/shared/i18n/index.ts
@@ -81,8 +81,7 @@ const dashToUnderscore = (text: string) => text.replace("-", "_");
 
 export const initI18n = () => {
   const lng = underscoreToDash(
-    // @ts-expect-error ts-migrate(2345) FIXME: Argument of type 'string | undefined' is not assig... Remove this comment to see the full error message
-    "DEFAULT_LANGUAGE" in process.env ? process.env.DEFAULT_LANGUAGE : "en_US"
+    "DEFAULT_LANGUAGE" in process.env ? process.env.DEFAULT_LANGUAGE! : "en_US"
   );
   i18n
     .use(backend)