diff --git a/flavors/swagger-ui-react/README.md b/flavors/swagger-ui-react/README.md
index 0fefd5b6c97..b3d9feb1814 100644
--- a/flavors/swagger-ui-react/README.md
+++ b/flavors/swagger-ui-react/README.md
@@ -45,8 +45,12 @@ Remote URL to an OpenAPI document that Swagger UI will fetch, parse, and display
 
 #### `onComplete`: PropTypes.func
 
+> `(system) => void`
+
 A callback function that is triggered when Swagger-UI finishes rendering an OpenAPI document.
 
+Swagger UI's `system` object is passed as an argument.
+
 #### `requestInterceptor`: PropTypes.func
 
 > `req => req` or `req => Promise<req>`.
diff --git a/flavors/swagger-ui-react/index.js b/flavors/swagger-ui-react/index.js
index bd24c9e2aa7..c19ca93b841 100644
--- a/flavors/swagger-ui-react/index.js
+++ b/flavors/swagger-ui-react/index.js
@@ -66,7 +66,7 @@ export default class SwaggerUI extends React.Component {
 
   onComplete = () => {
     if (typeof this.props.onComplete === "function") {
-      return this.props.onComplete()
+      return this.props.onComplete(this.system)
     }
   }
 }
@@ -80,4 +80,4 @@ SwaggerUI.propTypes = {
   requestInterceptor: PropTypes.func,
   responseInterceptor: PropTypes.func,
   onComplete: PropTypes.func,
-}
\ No newline at end of file
+}