diff --git a/evo_kit/README.md b/evo_kit/README.md
index c7c6ef7492bb8f4ea72d3a0d4f297eb8ad456d74..ecac85379c048f22e444b9286d8e5225a7e7daa8 100644
--- a/evo_kit/README.md
+++ b/evo_kit/README.md
@@ -12,7 +12,7 @@ auto agent = ESAgent(config);
 for (int i = 0; i < 10; ++i) {
    auto sampling_agnet = agent->clone(); // clone出一个sampling agent
    SamplingInfo info;
-   agent->add_noise(info); // 参数扰动，同时保存随机种子到info中
+   sampling_agent->add_noise(info); // 参数扰动，同时保存随机种子到info中
    int reward = evaluate(env, sampling_agent); //评估参数
    noisy_info.push_back(info); // 记录随机噪声对应种子
    noisy_rewards.push_back(reward); // 记录评估结果