diff --git a/lib/engine.js b/lib/engine.js
index 22fc60d..6ef5f7d 100644
--- a/lib/engine.js
+++ b/lib/engine.js
@@ -19,10 +19,12 @@ class Engine {
   }
 
   renderToString(reactClass, locals) {
+    reactClass = reactClass && reactClass.default ? reactClass.default : reactClass;
     return ReactDOMServer.renderToString(React.createElement(reactClass, locals));
   }
 
   renderToStaticMarkup(reactClass, locals) {
+    reactClass = reactClass && reactClass.default ? reactClass.default : reactClass;
     return ReactDOMServer.renderToStaticMarkup(React.createElement(reactClass, locals));
   }
 }