diff --git a/addons/create-react-class/factory.js b/addons/create-react-class/factory.js
index e7aedf0d664a..5e2e0561fa8e 100644
--- a/addons/create-react-class/factory.js
+++ b/addons/create-react-class/factory.js
@@ -160,7 +160,6 @@ function factory(ReactComponent, isValidElement, ReactNoopUpdateQueue) {
      *   }
      *
      * @return {ReactComponent}
-     * @nosideeffects
      * @required
      */
     render: 'DEFINE_ONCE',