diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index f76b471c9c..c9b5631d54 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -4,13 +4,14 @@
     <key>AFKTimeout</key>
     <map>
       <key>Comment</key>
-      <string>Time before automatically setting AFK (away from keyboard) mode (seconds, 0=never)</string>
+      <string>Time before automatically setting AFK (away from keyboard) mode (seconds, 0=never). 
+        Valid values are: 0, 120, 300, 600, 1800</string>
       <key>Persist</key>
       <integer>1</integer>
       <key>Type</key>
       <string>S32</string>
       <key>Value</key>
-      <real>0</real>
+      <real>300</real>
     </map>
     <key>AdvanceSnapshot</key>
     <map>