diff --git a/cmd/climc/shell/monitor/alert.go b/cmd/climc/shell/monitor/alert.go
index 0c3f88b0df..6dc7abcc4a 100644
--- a/cmd/climc/shell/monitor/alert.go
+++ b/cmd/climc/shell/monitor/alert.go
@@ -15,7 +15,6 @@
 package monitor
 
 import (
-	"encoding/json"
 	"fmt"
 
 	"yunion.io/x/pkg/errors"
@@ -46,11 +45,7 @@ func init() {
 			if err != nil {
 				return errors.Wrap(err, "DoTestRun")
 			}
-			jsonBytes, err := json.MarshalIndent(ret, "", "  ")
-			if err != nil {
-				return errors.Wrap(err, "MarshalIndent")
-			}
-			fmt.Printf("%s\n", jsonBytes)
+			fmt.Printf("%s\n", ret.PrettyString())
 			return nil
 		})
 }
diff --git a/pkg/mcclient/modules/monitor/alert.go b/pkg/mcclient/modules/monitor/alert.go
index 1cb0b6b5c4..5b4f49486d 100644
--- a/pkg/mcclient/modules/monitor/alert.go
+++ b/pkg/mcclient/modules/monitor/alert.go
@@ -15,8 +15,6 @@
 package monitor
 
 import (
-	"encoding/json"
-
 	"yunion.io/x/jsonutils"
 	"yunion.io/x/pkg/errors"
 
@@ -125,14 +123,10 @@ func (m *SAlertManager) DoCreate(s *mcclient.ClientSession, config *AlertConfig)
 	return m.Create(s, input.JSON(input))
 }
 
-func (m *SAlertManager) DoTestRun(s *mcclient.ClientSession, id string, input *monitor.AlertTestRunInput) (*monitor.AlertTestRunOutput, error) {
+func (m *SAlertManager) DoTestRun(s *mcclient.ClientSession, id string, input *monitor.AlertTestRunInput) (jsonutils.JSONObject, error) {
 	ret, err := m.PerformAction(s, id, "test-run", input.JSON(input))
 	if err != nil {
 		return nil, errors.Wrap(err, "call test-run")
 	}
-	out := new(monitor.AlertTestRunOutput)
-	if err := json.Unmarshal([]byte(ret.String()), out); err != nil {
-		return nil, errors.Wrapf(err, "Unmarshal %s", ret.String())
-	}
-	return out, nil
+	return ret, nil
 }