diff --git a/test/acceptance/cache/cache_headers.js b/test/acceptance/cache/cache_headers.js
index c8e93e63..ab3b8329 100644
--- a/test/acceptance/cache/cache_headers.js
+++ b/test/acceptance/cache/cache_headers.js
@@ -155,7 +155,7 @@ describe('get requests with cache headers', function() {
 
             assert.ok(res.headers['x-cache-channel']);
             assert.ok(res.headers['surrogate-key']);
-            assert.ok(res.headers['vary'] === 'Authorization');
+            assert.ok(res.headers.vary === 'Authorization');
             if (expectedCacheHeaders) {
                 validateXChannelHeaders(res.headers, expectedCacheHeaders);
                 assert.equal(res.headers['surrogate-key'], expectedCacheHeaders.surrogate_keys);