diff --git a/compiler/forget/scripts/test262-preprocessor.js b/compiler/forget/scripts/test262-preprocessor.js
index e42fce7f4b..919a08c1fe 100644
--- a/compiler/forget/scripts/test262-preprocessor.js
+++ b/compiler/forget/scripts/test262-preprocessor.js
@@ -1,24 +1,15 @@
-const BabelPluginReactForget = require("../dist/Babel/BabelPlugin").default;
-const transformSync = require("@babel/core").transformSync;
+const runReactForgetBabelPlugin = require("../dist/Babel/RunReactForgetBabelPlugin");
 
 // Preprocessor that runs Forget on the test262 test prior to execution. Compilation errors short
 // circuit test execution and report an error immediately.
 module.exports = (test) => {
   try {
-    const generated = transformSync(test.contents, {
-      filename: test.file,
-      plugins: [BabelPluginReactForget],
-    });
-    if (generated.code != null && generated.code !== "") {
-      test.contents = generated.code;
-    } else {
-      throw new Error("Codegen returned an empty string");
-    }
+    test.contents = runReactForgetBabelPlugin(test.contents, test.file).code;
   } catch (error) {
     // We use the `stderr` output to group errors so we can count them, so we need to dedupe errors
     // that are the same but differ slightly.
     let { name, message } = error;
-    message = message.replace(/\/.*\.js:\s/, ""); // babel seems to output filenames
+    message = message.replace(/^\/.*?:\s/, ""); // babel seems to output filenames
     message = message.split(/\(\d+:\d+\)/)[0]; // some errors report line numbers and codeframes
     message = message.trim();