diff --git a/src/web/app/common/scripts/get-cat.js b/src/web/app/common/scripts/get-cat.js
index bccfcbd4f..cd28c7bda 100644
--- a/src/web/app/common/scripts/get-cat.js
+++ b/src/web/app/common/scripts/get-cat.js
@@ -1,3 +1,3 @@
-module.exports = function() {
+module.exports = () => {
 	return '(=^・・^=)';
 };