diff --git a/src/Money.Blazor.Host/Pages/Summary.razor.cs b/src/Money.Blazor.Host/Pages/Summary.razor.cs
index b0a7457c..b257ab3d 100644
--- a/src/Money.Blazor.Host/Pages/Summary.razor.cs
+++ b/src/Money.Blazor.Host/Pages/Summary.razor.cs
@@ -305,7 +305,7 @@ async Task IEventHandler<IncomeDeleted>.HandleAsync(IncomeDeleted payload)
 
         private async void OnMonthUpdatedEvent(DateTime changed)
         {
-            if (!IsContained(changed))
+            if (Periods != null && !IsContained(changed))
                 IsPeriodReloadRequired = true;
 
             await LoadSelectedPeriodAsync();