diff --git a/packages/benchmark.js-plugin/src/index.ts b/packages/benchmark.js-plugin/src/index.ts
index 0fdfbed..e869363 100644
--- a/packages/benchmark.js-plugin/src/index.ts
+++ b/packages/benchmark.js-plugin/src/index.ts
@@ -164,35 +164,31 @@ async function runBenchmarks({
     const bench = benches[i];
     const uri = baseUri + "::" + (bench.name ?? `unknown_${i}`);
     const isAsync = bench.options.async || bench.options.defer;
-    let benchPayload;
+    let __codspeed_root_frame__;
     if (bench.options.defer) {
-      benchPayload = () => {
+      __codspeed_root_frame__ = () => {
         return new Promise((resolve, reject) => {
           (bench.fn as CallableFunction)({ resolve, reject });
         });
       };
     } else if (bench.options.async) {
-      benchPayload = async () => {
+      __codspeed_root_frame__ = async () => {
         await (bench.fn as CallableFunction)();
       };
     } else {
-      benchPayload = bench.fn as CallableFunction;
+      __codspeed_root_frame__ = bench.fn as CallableFunction;
     }
 
     if (isAsync) {
-      await optimizeFunction(benchPayload);
-      await (async function __codspeed_root_frame__() {
-        measurement.startInstrumentation();
-        await benchPayload();
-        measurement.stopInstrumentation(uri);
-      })();
+      await optimizeFunction(__codspeed_root_frame__);
+      measurement.startInstrumentation();
+      await __codspeed_root_frame__();
+      measurement.stopInstrumentation(uri);
     } else {
-      optimizeFunctionSync(benchPayload);
-      (function __codspeed_root_frame__() {
-        measurement.startInstrumentation();
-        benchPayload();
-        measurement.stopInstrumentation(uri);
-      })();
+      optimizeFunctionSync(__codspeed_root_frame__);
+      measurement.startInstrumentation();
+      __codspeed_root_frame__();
+      measurement.stopInstrumentation(uri);
     }
     console.log(`    ✔ Measured ${uri}`);
     benchmarkCompletedListeners.forEach((listener) => listener());