diff --git a/output_http.go b/output_http.go
index b05af82..7e81322 100644
--- a/output_http.go
+++ b/output_http.go
@@ -47,7 +47,7 @@ type HTTPOutput struct {
 
 	elasticSearch *es.ESPlugin
 
-	bufStats *GorStat
+	bufStats GorStat
 }
 
 func NewHTTPOutput(options string, headers HTTPHeaders, methods HTTPMethods, elasticSearchAddr string) io.Writer {