diff --git a/log/logsdk/logjson/option.go b/log/logsdk/logjson/option.go
index ac0a2bb..5aa5af5 100644
--- a/log/logsdk/logjson/option.go
+++ b/log/logsdk/logjson/option.go
@@ -17,6 +17,7 @@ type Option interface {
 func WithBufferPool(pool synchelper.BytesBufferPool) Option {
 	return optionFunc(func(cfg *config) {
 		cfg.pool = pool
+		cfg.hasPool = true
 	})
 }