diff --git a/UI/WebServerResources/js/Preferences/PreferencesController.js b/UI/WebServerResources/js/Preferences/PreferencesController.js
index 81f2e0b41..05c995b49 100644
--- a/UI/WebServerResources/js/Preferences/PreferencesController.js
+++ b/UI/WebServerResources/js/Preferences/PreferencesController.js
@@ -25,7 +25,7 @@
         $mdConstant.KEY_CODE.COMMA,
         $mdConstant.KEY_CODE.SEMICOLON
       ];
-      this.mailAutoMarkAsReadDelay = Preferences.defaults.SOGoMailAutoMarkAsReadEnabled ? Preferences.defaults.SOGoMailAutoMarkAsReadDelay : 5;
+      this.mailAutoMarkAsReadDelay = Preferences.defaults.SOGoMailAutoMarkAsReadMode == 'delay' ? Math.max(1, Preferences.defaults.SOGoMailAutoMarkAsReadDelay) : 5;
 
       // Set alternate avatar in User service
       if (Preferences.defaults.SOGoAlternateAvatar)