diff --git a/src/Netclaw.Actors/Reminders/ReminderManagerActor.cs b/src/Netclaw.Actors/Reminders/ReminderManagerActor.cs
index eddfe5d2c..599767cd0 100644
--- a/src/Netclaw.Actors/Reminders/ReminderManagerActor.cs
+++ b/src/Netclaw.Actors/Reminders/ReminderManagerActor.cs
@@ -105,6 +105,10 @@ protected override void PreStart()
             return;
         }
 
+        // The store can be constructed before all persisted files are present.
+        // Rescan at the actor's startup boundary so schema alerts reflect the
+        // authoritative on-disk state rather than constructor timing.
+        _definitionStore.List();
         EmitDroppedInvalidDefinitionAlerts();
         EmitRejectedLegacyDefinitionAlerts();