09 - Letting Drupal...Wrong Constant

In the Module Developer's Guide, section

09. Letting Drupal know about the new function
http://drupal.org/node/82969

it is suggested that

Use MENU_LOCAL_TASK if you want the user to see the link in the side navigation block.

When I tried using MENU_LOCAL_TASK, nothing was added to the user's menu. When I used MENU_NORMAL_ITEM, a new link was added to the user's menu.