diff --git a/extensions/amp-ad-network-fake-impl/0.1/external-reorder-head-transformer.js b/extensions/amp-ad-network-fake-impl/0.1/external-reorder-head-transformer.js
index 68741f6cb2d6..ca9982ab354a 100644
--- a/extensions/amp-ad-network-fake-impl/0.1/external-reorder-head-transformer.js
+++ b/extensions/amp-ad-network-fake-impl/0.1/external-reorder-head-transformer.js
@@ -164,10 +164,7 @@ export class ExternalReorderHeadTransformer {
     if (
       isAsync &&
       ((src.startsWith(urls.cdn) &&
-        (endsWith(src, '/v0.js') ||
-          endsWith(src, '/v0.js.br') ||
-          endsWith(src, '/amp4ads-v0.js') ||
-          endsWith(src, '/amp4ads-v0.js.br'))) ||
+        (endsWith(src, '/v0.js') || endsWith(src, '/amp4ads-v0.js'))) ||
         endsWith(src, '/dist/amp.js') ||
         endsWith(src, '/dist/amp-inabox.js') ||
         endsWith(src, '/dist/v0.js') ||