Android :: Include Tag And Text - Common Formatting

I'm trying to use some common formatting for a number of different labels, all with different text. From http://android-developers.blogspot.com/2009/02/android-layout-tricks-, it seems as though I should be able to do something like the following:
<include android:text="@string/description" layout="@layout/label"/>

Where, in label.xml, I have:
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
<!-- more detailed formatting to come later --> />

For some reason, the text of the label is showing up empty when I do this. But I can successfully add an ID in this fashion, and then change the text of the label in my application code. For example:
<include android:id="@+id/description_label" layout="@layout/label"/>