diff --git a/docs/content/tutorial/step_04.ngdoc b/docs/content/tutorial/step_04.ngdoc
index f8474774d15a..2a041030f2ad 100644
--- a/docs/content/tutorial/step_04.ngdoc
+++ b/docs/content/tutorial/step_04.ngdoc
@@ -182,7 +182,7 @@ You can now rerun `npm run protractor` to see the tests run.
 # Experiments
 
 * In the `PhoneListCtrl` controller, remove the statement that sets the `orderProp` value and
-you'll see that Angular will temporarily add a new "unknown" option to the drop-down list and the
+you'll see that Angular will temporarily add a new blank ("unknown") option to the drop-down list and the
 ordering will default to unordered/natural order.
 
 * Add an `{{orderProp}}` binding into the `index.html` template to display its current value as