diff --git a/docs/html/guide/practices/ui_guidelines/activity_task_design.jd b/docs/html/guide/practices/ui_guidelines/activity_task_design.jd
index 05f61beb86e06..c8d241c68ed70 100644
--- a/docs/html/guide/practices/ui_guidelines/activity_task_design.jd
+++ b/docs/html/guide/practices/ui_guidelines/activity_task_design.jd
@@ -256,8 +256,8 @@ page.title=Activity and Task Design Guidelines
to be able go to a subsequent screen B and then use the BACK key to go
back to screen A, then the screen A needs to be implemented as an
activity. The one exception to this rule is if your application
- and manages the navigation itself.
+ takes control of the BACK key and manages the navigation
+itself.