diff --git a/Needlework.Net/Program.cs b/Needlework.Net/Program.cs
index 46c9a8c..38c1470 100644
--- a/Needlework.Net/Program.cs
+++ b/Needlework.Net/Program.cs
@@ -6,6 +6,7 @@ using Needlework.Net.ViewModels;
 using Projektanker.Icons.Avalonia;
 using Projektanker.Icons.Avalonia.FontAwesome;
 using System;
+using System.IO;
 
 namespace Needlework.Net;
 
@@ -15,8 +16,13 @@ class Program
     // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
     // yet and stuff might break.
     [STAThread]
-    public static void Main(string[] args) => BuildAvaloniaApp()
+    public static void Main(string[] args)
+    {
+        AppDomain.CurrentDomain.UnhandledException += Program_UnhandledException;
+
+        BuildAvaloniaApp()
         .StartWithClassicDesktopLifetime(args);
+    }
 
     // Avalonia configuration, don't remove; also used by visual designer.
     public static AppBuilder BuildAvaloniaApp()
@@ -43,4 +49,9 @@ class Program
         var services = builder.BuildServiceProvider();
         return services;
     }
+
+    private static void Program_UnhandledException(object sender, UnhandledExceptionEventArgs e)
+    {
+        File.WriteAllText($"errorlog-{DateTime.Now:HHmmssfff}", e.ExceptionObject.ToString());
+    }
 }