diff --git a/README.md b/README.md
index b68495e..d983360 100644
--- a/README.md
+++ b/README.md
@@ -509,6 +509,18 @@ in your web browser:
 Those semantic utility class names should give you a _flavour_
 for what to expect in the UI. 
 
+Fix the failing tests!
+
+Open `test/app_web/controllers/page_controller_test.exs`
+and change the assertion from:
+```elixir
+assert html_response(conn, 200) =~ "Welcome to Phoenix!"
+```
+
+to:
+```elixir
+assert html_response(conn, 200) =~ "Hello TailWorld!"
+```
 
 ### More Detailed Example!
 
diff --git a/test/app_web/controllers/page_controller_test.exs b/test/app_web/controllers/page_controller_test.exs
index 4bb48b7..7619e5d 100644
--- a/test/app_web/controllers/page_controller_test.exs
+++ b/test/app_web/controllers/page_controller_test.exs
@@ -3,6 +3,6 @@ defmodule AppWeb.PageControllerTest do
 
   test "GET /", %{conn: conn} do
     conn = get(conn, "/")
-    assert html_response(conn, 200) =~ "Welcome to Phoenix!"
+    assert html_response(conn, 200) =~ "Hello TailWorld!"
   end
 end