diff --git a/doc/source/index.rst b/doc/source/index.rst
index 4a5f005..7ecaf4b 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -9,4 +9,4 @@ CCE provides highly scalable, high-performance, enterprise-class Kubernetes clus
    .. service_card::
       :service_type: cce
       :umn: Describes the basic concepts, functions, key terms, best practices, FAQs and steps for quickly creating clusters and containerized applications.
-      :api: Describes the APIs provided by CCE including the functions, parameters, and examples of each API.
\ No newline at end of file
+      :api-ref: Describes the APIs provided by CCE including the functions, parameters, and examples of each API.
\ No newline at end of file