diff --git a/lighthouse-cli/test/fixtures/byte-efficiency/tester.html b/lighthouse-cli/test/fixtures/byte-efficiency/tester.html
index 41c7fe7f668a..0f9f0711fd5b 100644
--- a/lighthouse-cli/test/fixtures/byte-efficiency/tester.html
+++ b/lighthouse-cli/test/fixtures/byte-efficiency/tester.html
@@ -36,7 +36,7 @@
 setTimeout(() => {
   const start = Date.now();
   while (Date.now() < start + 100) ;
-}, 2000);
+}, 4000);
 
 // Lazily load the image
 setTimeout(() => {