diff --git a/test/wpt/test-file.js b/test/wpt/test-file.js
index a48b2fb55299b9..ca337359db263c 100644
--- a/test/wpt/test-file.js
+++ b/test/wpt/test-file.js
@@ -4,9 +4,4 @@ const { WPTRunner } = require('../common/wpt');
 
 const runner = new WPTRunner('FileAPI/file');
 
-runner.setInitScript(`
-  const { File } = require('buffer');
-  globalThis.File = File;
-`);
-
 runner.runJsTests();
diff --git a/test/wpt/test-structured-clone.js b/test/wpt/test-structured-clone.js
index 26edf0607083a9..4dcd44ad6a40bb 100644
--- a/test/wpt/test-structured-clone.js
+++ b/test/wpt/test-structured-clone.js
@@ -4,9 +4,4 @@ const { WPTRunner } = require('../common/wpt');
 
 const runner = new WPTRunner('html/webappapis/structured-clone');
 
-runner.setInitScript(`
-  const { File } = require('buffer');
-  globalThis.File = File;
-`);
-
 runner.runJsTests();