diff --git a/src/anti-detection.ts b/src/anti-detection.ts
index 2e3ee1f..aa8d18d 100644
--- a/src/anti-detection.ts
+++ b/src/anti-detection.ts
@@ -7,31 +7,26 @@
 export const makeNative = (() => {
   const l: Set<Function> = new Set()
 
-  const target = Function.prototype
-  const method = 'toString'
-  const _toString = target[method]
-  const toString = function () {
-    if (l.has(this)) {
-      // "function () {\n    [native code]\n}"
-      return _toString.call(parseInt) as string
+  hookNative(Function.prototype, 'toString', (_toString) => {
+    return function () {
+      if (l.has(this)) {
+        // "function () {\n    [native code]\n}"
+        return _toString.call(parseInt) as string
+      }
+      return _toString.call(this) as string
     }
-    return _toString.call(this) as string
-  }
-  target[method] = toString
-
-  // make `Function.prototype.toString` itself "native"
-  l.add(toString)
+  })
 
   return (fn: Function) => {
     l.add(fn)
   }
 })()
 
-export const hookNative = <T extends object, M extends (keyof T)> (
+export function hookNative<T extends object, M extends (keyof T)> (
   target: T,
   method: M,
   hook: (originalFn: T[M], detach: () => void) => T[M],
-): void => {
+): void {
   // reserve for future hook update
   const _fn = target[method]
   const detach = () => {
@@ -43,5 +38,7 @@ export const hookNative = <T extends object, M extends (keyof T)> (
   const hookedFn = hook(_fn, detach)
   target[method] = hookedFn
 
-  makeNative(hookedFn as any)
+  setTimeout(() => {
+    makeNative(hookedFn as any)
+  })
 }