diff --git a/Needlework.Net/Logger.cs b/Needlework.Net/Logger.cs
index 07ab398..eb75e86 100644
--- a/Needlework.Net/Logger.cs
+++ b/Needlework.Net/Logger.cs
@@ -12,7 +12,7 @@ namespace Needlework.Net
         {
             var logger = new LoggerConfiguration()
                 .MinimumLevel.Debug()
-                .WriteTo.File("Logs/debug-", rollingInterval: RollingInterval.Day, shared: true)
+                .WriteTo.File("Logs/debug-.log", rollingInterval: RollingInterval.Day, shared: true)
                 .CreateLogger();
             logger.Debug("NeedleworkDotNet version: {Version}", Assembly.GetEntryAssembly()?.GetName().Version?.ToString() ?? "0.0.0.0");
             logger.Debug("OS description: {Description}", System.Runtime.InteropServices.RuntimeInformation.OSDescription);
@@ -21,7 +21,7 @@ namespace Needlework.Net
 
         public static void LogFatal(UnhandledExceptionEventArgs e)
         {
-            File.WriteAllText($"Logs/fatal-{DateTime.Now:HHmmssfff}", e.ExceptionObject.ToString());
+            File.AppendAllText($"Logs/fatal-{DateTime.Now:yyyyMMdd}.log", e.ExceptionObject.ToString());
         }
     }
 }