diff --git a/app/Http/Requests/StoreNotificationSettings.php b/app/Http/Requests/StoreNotificationSettings.php
index d7d604c700..bf5f5b3d4e 100644
--- a/app/Http/Requests/StoreNotificationSettings.php
+++ b/app/Http/Requests/StoreNotificationSettings.php
@@ -26,7 +26,7 @@ class StoreNotificationSettings extends FormRequest
         return [
             'alert_email'                         => 'email_array|nullable',
             'admin_cc_email'                      => 'email_array|nullable',
-            'alert_threshold'                     => 'numeric|nullable|gt:0',
+            'alert_threshold'                     => 'numeric|nullable',
             'alert_interval'                      => 'numeric|nullable|gt:0',
             'audit_warning_days'                  => 'numeric|nullable',
             'due_checkin_days'                    => 'numeric|nullable|gt:0',