diff --git a/BililiveRecorder.FlvProcessor/FlvStreamProcessor.cs b/BililiveRecorder.FlvProcessor/FlvStreamProcessor.cs
index 7822c32..3174846 100644
--- a/BililiveRecorder.FlvProcessor/FlvStreamProcessor.cs
+++ b/BililiveRecorder.FlvProcessor/FlvStreamProcessor.cs
@@ -362,7 +362,7 @@ namespace BililiveRecorder.FlvProcessor
         {
             try
             {
-                logger.Debug("正在关闭当前录制文件: " + _targetFile.Name);
+                logger.Debug("正在关闭当前录制文件: " + _targetFile?.Name);
                 Metadata["duration"] = CurrentMaxTimestamp / 1000.0;
                 Metadata["lasttimestamp"] = (double)CurrentMaxTimestamp;
                 byte[] metadata = Metadata.ToBytes();