diff --git a/src/client/preview/index.js b/src/client/preview/index.js
index f0f3b706fa2e..5c392a89df93 100644
--- a/src/client/preview/index.js
+++ b/src/client/preview/index.js
@@ -14,7 +14,7 @@ import reducer from './reducer';
 
 // check whether we're running on node/browser
 const { navigator } = global;
-const isBrowser = navigator && navigator.userAgent !== 'storyshots';
+const isBrowser = navigator && navigator.userAgent !== 'storyshots' && !navigator.userAgent.includes('Node.js');
 
 const storyStore = new StoryStore();
 const reduxStore = createStore(reducer);