diff --git a/lighthouse-cli/test/fixtures/perf/perf-budgets/load-things.html b/lighthouse-cli/test/fixtures/perf/perf-budgets/load-things.html
index a0cca3060870..26cb786fb21b 100644
--- a/lighthouse-cli/test/fixtures/perf/perf-budgets/load-things.html
+++ b/lighthouse-cli/test/fixtures/perf/perf-budgets/load-things.html
@@ -30,7 +30,7 @@
         // Load file as 'other' resource.
         const response = await fetch('http://localhost:10503/preload.html');
         const ab = await response.arrayBuffer();
-        document.querySelector('#corsfont').textContent = ab.length;
+        document.querySelector('.fetch-length').textContent = ab.byteLength;
       }
       yah();
     </script>
@@ -40,7 +40,7 @@
     <img style="width: 100px; height: 100px;" src="../../byte-efficiency/large.svg">
     <p class="webfont">Ripping off some webfont smoke tests</p>
     <p><strong class="webfont">Do we need such text</strong></p>
-    <p id="corsfont"></p>
+    <p class="fetch-length"></p>
     <script src="../level-2.js"></script>
   </body>
 </html>
diff --git a/lighthouse-cli/test/smokehouse/perf/expectations.js b/lighthouse-cli/test/smokehouse/perf/expectations.js
index b0d64f39f607..45b1e239905f 100644
--- a/lighthouse-cli/test/smokehouse/perf/expectations.js
+++ b/lighthouse-cli/test/smokehouse/perf/expectations.js
@@ -110,7 +110,7 @@ module.exports = [
               {
                 resourceType: 'document',
                 countOverBudget: '1 request',
-                sizeOverBudget: '1100±50',
+                sizeOverBudget: '1150±50',
               },
               {
                 resourceType: 'stylesheet',