diff --git a/test/style.js b/test/style.js
index b7ff090..469eab7 100644
--- a/test/style.js
+++ b/test/style.js
@@ -44,7 +44,10 @@ describe('Styles', function () {
 
   describe('/styles/' + prefix + '/sprite/default[@2x].{format}', function () {
     testIs('/styles/' + prefix + '/sprite/default.json', /application\/json/);
-    testIs('/styles/' + prefix + '/sprite/default@2x.json', /application\/json/);
+    testIs(
+      '/styles/' + prefix + '/sprite/default@2x.json',
+      /application\/json/,
+    );
     testIs('/styles/' + prefix + '/sprite/default.png', /image\/png/);
     testIs('/styles/' + prefix + '/sprite/default@2x.png', /image\/png/);
   });