diff --git a/SUMMARY.md b/SUMMARY.md
index dfb358933..2f1d394da 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -243,5 +243,4 @@
 * [Kubernetes及云原生年度总结及展望](appendix/summary-and-outlook.md)
   * [Kubernetes与云原生2017年年终总结及2018年展望](appendix/kubernetes-and-cloud-native-summary-in-2017-and-outlook-for-2018.md)
 * [Kubernetes认证服务提供商（KCSP）说明](appendix/about-kcsp.md)
-* [认证Kubernetes管理员（CKA）说明](appendix/about-CKA-Candidate.md)
-
+* [认证Kubernetes管理员（CKA）说明](appendix/about-cka-candidate.md)