diff --git a/src/Record/HlsMakerImp.cpp b/src/Record/HlsMakerImp.cpp
index cfb76e17..cfb42ed6 100644
--- a/src/Record/HlsMakerImp.cpp
+++ b/src/Record/HlsMakerImp.cpp
@@ -103,7 +103,8 @@ void HlsMakerImp::onWriteHls(const char *data, int len) {
 
 
 std::shared_ptr<FILE> HlsMakerImp::makeFile(const string &file,bool setbuf) {
-    auto ret= shared_ptr<FILE>(File::createfile_file(file.data(), "wb"), [](FILE *fp) {
+    auto file_buf = _file_buf;
+    auto ret= shared_ptr<FILE>(File::createfile_file(file.data(), "wb"), [file_buf](FILE *fp) {
         if (fp) {
             fclose(fp);
         }