diff --git a/res/xml/preferences.xml b/res/xml/preferences.xml
index e4a527f6..06ab7560 100644
--- a/res/xml/preferences.xml
+++ b/res/xml/preferences.xml
@@ -51,6 +51,7 @@
             android:title="@string/pref_sound" />
 
         <CheckBoxPreference
+            android:defaultValue="true"
             android:dependency="show_notification"
             android:key="always_notify_in_conference"
             android:summary="@string/pref_conference_notifications_summary"