diff --git a/docs/html/guide/components/activities.jd b/docs/html/guide/components/activities.jd
index 5e6917bac0f5a..b4d47a8c88fc2 100644
--- a/docs/html/guide/components/activities.jd
+++ b/docs/html/guide/components/activities.jd
@@ -661,7 +661,7 @@ that should be saved. Almost every widget in the Android framework implements th
 appropriate, such that any visible changes to the UI are automatically saved and restored when your
 activity is recreated. For example, the {@link android.widget.EditText} widget saves any text
 entered by the user and the {@link android.widget.CheckBox} widget saves whether it's checked or
-not. The only work required by you is to provide a unique ID (with the <a
+not. The only work required of you is to provide a unique ID (with the <a
 href="{@docRoot}guide/topics/resources/layout-resource.html#idvalue">{@code android:id}</a>
 attribute) for each widget you want to save its state. If a widget does not have an ID, then the
 system cannot save its state.</p>