diff --git a/web/app/(app)/settings/page.tsx b/web/app/(app)/settings/page.tsx
index 06a737c..44236ea 100644
--- a/web/app/(app)/settings/page.tsx
+++ b/web/app/(app)/settings/page.tsx
@@ -195,10 +195,15 @@ export default function SettingsPage() {
                         localLoginEnabled={settings?.local_login_enabled ?? true}
                         onLocalLoginChange={(v) => {
                             if (!settings) return;
+                            // Same in-progress form state the main Save button submits
+                            // (handleSubmit below), not the stale loaded `settings`
+                            // object — otherwise an unsaved edit to the offline
+                            // threshold or retention days is silently reverted the
+                            // moment this toggle is flipped.
                             save({
-                                alerts: settings.alerts,
+                                alerts: { ...settings.alerts, offline_threshold_minutes: thresholdMinutes },
                                 email: settings.email,
-                                workflow_log_retention_days: settings.workflow_log_retention_days,
+                                workflow_log_retention_days: logRetentionDays,
                                 local_login_enabled: v,
                             });
                         }}