diff --git a/cmd/config/docs/api-conventions/config-io.md b/cmd/config/docs/api-conventions/config-io.md
index 5237ef837..07c4b2f51 100644
--- a/cmd/config/docs/api-conventions/config-io.md
+++ b/cmd/config/docs/api-conventions/config-io.md
@@ -39,7 +39,7 @@ Example:
 ```yaml
 metadata:
   annotations:
-    config.kubernetes.io/index: "0"
+    config.kubernetes.io/index: 0
 ```
 
 ### `config.kubernetes.io/local-config`