diff --git a/overlay/common/frameworks/base/core/res/res/values/config.xml b/overlay/common/frameworks/base/core/res/res/values/config.xml
index 189ac64..491fe0b 100644
--- a/overlay/common/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/common/frameworks/base/core/res/res/values/config.xml
@@ -65,4 +65,7 @@
     <dimen name="config_buttonCornerRadius">8.0dip</dimen> <!-- default: 2dp -->
     <dimen name="config_progressBarCornerRadius">1000.0dip</dimen> <!-- default: 0 -->
 
+    <!-- The duration in which a recent task is considered in session and should be visible. -->
+    <integer name="config_activeTaskDurationHours">12</integer>
+
 </resources>