diff --git a/tests/uri.test.js b/tests/uri.test.js
index 10b2047..055fe6f 100644
--- a/tests/uri.test.js
+++ b/tests/uri.test.js
@@ -1,22 +1,16 @@
 import util from '../web/utils/uri'
 
 test('base URI', () => {
-  const category = 'dev'
-  const lang = 'ko'
-  const uri = util.getUri(category, lang)
+  const uri = util.getUri('dev', 'ko')
   expect(uri).toBe('/')
 })
 
 test('category URI', () => {
-  const category = 'food'
-  const lang = 'ko'
-  const uri = util.getUri(category, lang)
+  const uri = util.getUri('food', 'ko')
   expect(uri).toBe('/food/')
 })
 
 test('lang URI', () => {
-  const category = 'dev'
-  const lang = 'en'
-  const uri = util.getUri(category, lang)
+  const uri = util.getUri('dev', 'en')
   expect(uri).toBe('/en')
 })
diff --git a/web/utils/uri.js b/web/utils/uri.js
index fbf2354..96fe5c4 100644
--- a/web/utils/uri.js
+++ b/web/utils/uri.js
@@ -1,4 +1,4 @@
-function getUri(category = 'dev', lang) {
+function getUri(category = 'dev', lang = '') {
   if (category === 'dev') {
     category = ''
   }