diff --git a/frontend/src/services/i18n/i18n.spec.js b/frontend/src/services/i18n/i18n.spec.js
index 1b4edf3c4..b809895e5 100644
--- a/frontend/src/services/i18n/i18n.spec.js
+++ b/frontend/src/services/i18n/i18n.spec.js
@@ -9,7 +9,7 @@ describe('I18n', () => {
 
   // helper function
   function expectTranslation(id, value) {
-    expect(i18n.translations[id]).toMatch(value);
+    expect(i18n.get(id)).toMatch(value);
   }
 
   it('should create', () => {
@@ -38,7 +38,7 @@ describe('I18n', () => {
 
   describe('get()', () => {
     it('should return stored translations', () => {
-      i18n.translations.id1 = 'something';
+      i18n.add('id1', 'something');
       expect(i18n.get('id1')).toMatch('something');
     });