diff --git a/nose/bin/echo.ts b/nose/bin/echo.ts
index 692c110..0e06a22 100644
--- a/nose/bin/echo.ts
+++ b/nose/bin/echo.ts
@@ -1,3 +1,3 @@
-function (...args: string[]): string {
+export default function (...args: string[]): string {
   return args.join(" ")
 }
\ No newline at end of file