diff --git a/src/MeoAsstGui/Bootstrapper.cs b/src/MeoAsstGui/Bootstrapper.cs
index 91254efa04..9f5cffd2a9 100644
--- a/src/MeoAsstGui/Bootstrapper.cs
+++ b/src/MeoAsstGui/Bootstrapper.cs
@@ -114,7 +114,7 @@ namespace MeoAsstGui
         protected override void OnUnhandledException(DispatcherUnhandledExceptionEventArgs e)
         {
             // 抛异常了，可以打些日志
-            File.AppendAllText("gui.err.log", DateTime.Now.ToString() + ' ' + e.Exception.ToString());
+            File.AppendAllText("gui.err.log", DateTime.Now.ToString() + ' ' + e.Exception.ToString() + '\n');
         }
     }
 }