diff --git a/test/backend/simple_test.rb b/test/backend/simple_test.rb
index fcecf385..960e8cc9 100644
--- a/test/backend/simple_test.rb
+++ b/test/backend/simple_test.rb
@@ -76,7 +76,7 @@ def setup
   end
 
   test "simple load_json: loads data from a JSON file" do
-    data = I18n.backend.send(:load_yml, "#{locales_dir}/en.json")
+    data = I18n.backend.send(:load_json, "#{locales_dir}/en.json")
     assert_equal({ 'en' => { 'foo' => { 'bar' => 'baz' } } }, data)
   end