diff --git a/client/agent.go b/client/agent.go
index db5288f..14aff78 100644
--- a/client/agent.go
+++ b/client/agent.go
@@ -121,7 +121,7 @@ func (agent *Agent) sendSyncPluginRequest(p types.Plugin) error {
 
 // 发送主机配置信息
 func (agent *Agent) register() error {
-	lg.Debug("send host config %v", agent.hostcfg)
+	lg.Debug("send host config %+v", agent.hostcfg)
 	return agent.cfc.AsyncWritePacket(
 		tcp.NewDefaultPacket(
 			types.MsgAgentRegister,
diff --git a/common/types/plugin.go b/common/types/plugin.go
index f9cc500..bc2b086 100644
--- a/common/types/plugin.go
+++ b/common/types/plugin.go
@@ -42,7 +42,7 @@ func (plugin *Plugin) Decode(data []byte) error {
 }
 
 func (plugin Plugin) String() string {
-	return fmt.Sprintf("{id:%d, name:%s, path:%s, args:%s, interval:%d, timeout:%d, checksum:%s}",
+	return fmt.Sprintf(`{"id":%d, "name":"%s", "path":"%s", "args":"%s", "interval":%d, "timeout":%d, "checksum":"%s"}`,
 		plugin.ID,
 		plugin.Name,
 		plugin.Path,