diff --git a/atom/browser/default_app/main.js b/atom/browser/default_app/main.js
index 5664fac4cd21..1726ffba8ea1 100644
--- a/atom/browser/default_app/main.js
+++ b/atom/browser/default_app/main.js
@@ -53,7 +53,7 @@ if (option.file && !option.webdriver) {
   } catch(e) {
     if (e.code == 'MODULE_NOT_FOUND') {
       app.focus();
-      dialog.showErrorBox('Error opening app', 'The app provided is not a valid electron app, please read the docs on how to write one:\nhttps://github.com/atom/electron/tree/master/docs');
+      dialog.showErrorBox('Error opening app', 'The app provided is not a valid electron app, please read the docs on how to write one:\nhttps://github.com/atom/electron/tree/master/docs\n\n' + e.toString());
       process.exit(1);
     } else {
       console.error('App threw an error when running', e);