diff --git a/pkg/hevc/var.go b/pkg/hevc/var.go
index 8c821b87..1c6450e2 100644
--- a/pkg/hevc/var.go
+++ b/pkg/hevc/var.go
@@ -15,4 +15,4 @@ var Log = nazalog.GetGlobalLogger()
 // StrategyTryAnnexbWhenParseVspFromSeqHeaderFailed 从seq header中解析vps/sps/pps失败时，尝试按annexb格式解析
 //
 // https://github.com/q191201771/lal/pull/353
-var StrategyTryAnnexbWhenParseVspFromSeqHeaderFailed = false
+var StrategyTryAnnexbWhenParseVspFromSeqHeaderFailed = true