diff --git a/client/client.go b/client/client.go
index f5a104f..bc32fa1 100644
--- a/client/client.go
+++ b/client/client.go
@@ -34,7 +34,7 @@ type clientConfig struct {
 	GrpcAddress     string `json:"grpc_server_address"`
 	HttpAddress     string `json:"http_server_address"`
 	StorageRoot     string `json:"storage_path"`
-	RunNodeExporter bool   `json:"run_node_exporter"`
+	MetricNamespace string `json:"metric_namespace"`
 }
 
 func loadClientConfig() (clientConfig, error) {
diff --git a/client/operation.go b/client/operation.go
index 5d2452e..afe9c97 100644
--- a/client/operation.go
+++ b/client/operation.go
@@ -275,7 +275,7 @@ func (hc *houstonClient) launch(meta *procmeta) error {
 
 						if _, registered := metricValues[metric.Key]; !registered {
 							exporter := newExporterForPrometheus()
-							accessor := exporter.registMetric(childProcName, metric)
+							accessor := exporter.registMetric(hc.config.MetricNamespace, metric)
 
 							prometheus.Register(exporter)