diff --git a/pixiu/pkg/config/config_load.go b/pixiu/pkg/config/config_load.go
index 80aa01bc4..fdf3725ec 100644
--- a/pixiu/pkg/config/config_load.go
+++ b/pixiu/pkg/config/config_load.go
@@ -244,7 +244,7 @@ func (m *ConfigManager) loadRemoteBootConfigs() *model.Bootstrap {
 
 	err = mergo.Merge(configs, bootstrap, func(c *mergo.Config) {
 		c.Overwrite = false
-		c.AppendSlice = true
+		c.AppendSlice = false
 	})
 
 	if err != nil {
diff --git a/pixiu/pkg/model/bootstrap.go b/pixiu/pkg/model/bootstrap.go
index 0e94009cf..1714f6852 100644
--- a/pixiu/pkg/model/bootstrap.go
+++ b/pixiu/pkg/model/bootstrap.go
@@ -33,7 +33,7 @@ type Bootstrap struct {
 	Node             *Node             `yaml:"node" json:"node" mapstructure:"node"`
 	Trace            *TracerConfig     `yaml:"tracing" json:"tracing" mapstructure:"tracing"`
 	Wasm             *WasmConfig       `yaml:"wasm" json:"wasm" mapstructure:"wasm"`
-	Config           *ConfigCenter
+	Config           *ConfigCenter     `yaml:"config-center" json:"config-center" mapstructure:"config-center"`
 	// Third party dependency
 	Nacos *Nacos `yaml:"nacos" json:"nacos" mapstructure:"nacos"`
 }