diff --git a/docs/api.md b/docs/api.md
index 94d5dfcbfa3..12030d6a444 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -38,7 +38,7 @@ Primary system and API concepts are documented in the [User guide](user-guide/RE
 
 Overall API conventions are described in the [API conventions doc](devel/api-conventions.md).
 
-Complete API details are documented via [Swagger](http://swagger.io/). The Kubernetes apiserver (aka "master") exports an API that can be used to retrieve the [Swagger spec](https://github.com/swagger-api/swagger-spec/tree/master/schemas/v1.2) for the Kubernetes API, by default at `/swaggerapi`, and a UI you can use to browse the API documentation at `/swagger-ui`. We also host generated [API reference docs](api-reference/README.md).
+Complete API details are documented via [Swagger](http://swagger.io/). The Kubernetes apiserver (aka "master") exports an API that can be used to retrieve the [Swagger spec](https://github.com/swagger-api/swagger-spec/tree/master/schemas/v1.2) for the Kubernetes API, by default at `/swaggerapi`. It also exports a UI you can use to browse the API documentation at `/swagger-ui` if the apiserver is passed --enable-swagger-ui=true flag. We also host generated [API reference docs](api-reference/README.md).
 
 Remote access to the API is discussed in the [access doc](admin/accessing-the-api.md).