diff --git a/bfe_modules/mod_tcp_keepalive/mod_tcp_keepalive_test.go b/bfe_modules/mod_tcp_keepalive/mod_tcp_keepalive_test.go
index facfc130..3de3321a 100644
--- a/bfe_modules/mod_tcp_keepalive/mod_tcp_keepalive_test.go
+++ b/bfe_modules/mod_tcp_keepalive/mod_tcp_keepalive_test.go
@@ -18,7 +18,6 @@ import (
 	"testing"
 
 	"github.com/baidu/go-lib/web-monitor/web_monitor"
-
 	"github.com/bfenetworks/bfe/bfe_basic"
 	"github.com/bfenetworks/bfe/bfe_http"
 	"github.com/bfenetworks/bfe/bfe_module"