diff --git a/KeyHandler/res/values/arrays.xml b/KeyHandler/res/values/arrays.xml
index c510ead..3367de0 100644
--- a/KeyHandler/res/values/arrays.xml
+++ b/KeyHandler/res/values/arrays.xml
@@ -5,6 +5,7 @@
 -->
 <resources>
     <string-array name="alert_slider_action_entries" translatable="false">
+        <item>@string/alert_slider_mode_none</item>
         <item>@string/alert_slider_mode_normal</item>
         <item>@string/alert_slider_mode_vibration</item>
         <item>@string/alert_slider_mode_silent</item>
@@ -14,6 +15,7 @@
     </string-array>
 
     <string-array name="alert_slider_action_entry_values" translatable="false">
+        <item>-1</item>
         <item>2</item>
         <item>1</item>
         <item>0</item>
diff --git a/KeyHandler/res/values/strings.xml b/KeyHandler/res/values/strings.xml
index 1643ce3..1e9108c 100644
--- a/KeyHandler/res/values/strings.xml
+++ b/KeyHandler/res/values/strings.xml
@@ -10,6 +10,7 @@
     <string name="alert_slider_top_position">Top position</string>
     <string name="alert_slider_middle_position">Middle position</string>
     <string name="alert_slider_bottom_position">Bottom position</string>
+    <string name="alert_slider_mode_none">None</string>
     <string name="alert_slider_mode_silent">Silent</string>
     <string name="alert_slider_mode_normal">Normal</string>
     <string name="alert_slider_mode_vibration">Vibration</string>