diff --git a/backend/src/crd/controller/scheduledworkflow/util/scheduled_workflow.go b/backend/src/crd/controller/scheduledworkflow/util/scheduled_workflow.go
index 916b43b0b0..912a41a4ae 100644
--- a/backend/src/crd/controller/scheduledworkflow/util/scheduled_workflow.go
+++ b/backend/src/crd/controller/scheduledworkflow/util/scheduled_workflow.go
@@ -184,6 +184,8 @@ func (s *ScheduledWorkflow) NewWorkflow(
 
 	result.SetCannonicalLabels(s.Name, nextScheduledEpoch, s.nextIndex())
 	result.SetLabels(commonutil.LabelKeyWorkflowRunId, uuid.String())
+	// Pod pipeline/runid label is used by v2 compatible mode.
+	result.SetPodMetadataLabels(commonutil.LabelKeyWorkflowRunId, uuid.String())
 	// Replace {{workflow.uid}} with runId
 	err = result.ReplaceUID(uuid.String())
 	if err != nil {
diff --git a/backend/src/crd/controller/scheduledworkflow/util/scheduled_workflow_test.go b/backend/src/crd/controller/scheduledworkflow/util/scheduled_workflow_test.go
index 60532024bb..20f9acc57f 100644
--- a/backend/src/crd/controller/scheduledworkflow/util/scheduled_workflow_test.go
+++ b/backend/src/crd/controller/scheduledworkflow/util/scheduled_workflow_test.go
@@ -726,6 +726,9 @@ func TestScheduledWorkflow_NewWorkflow(t *testing.T) {
 				BlockOwnerDeletion: commonutil.BooleanPointer(true)}},
 		},
 		Spec: workflowapi.WorkflowSpec{
+			PodMetadata: &workflowapi.Metadata{
+				Labels: map[string]string{"pipeline/runid": "123e4567-e89b-12d3-a456-426655440001"},
+			},
 			ServiceAccountName: "SERVICE_ACCOUNT",
 			Arguments: workflowapi.Arguments{
 				Parameters: []workflowapi.Parameter{
@@ -800,6 +803,9 @@ func TestScheduledWorkflow_NewWorkflow_Parameterized(t *testing.T) {
 				BlockOwnerDeletion: commonutil.BooleanPointer(true)}},
 		},
 		Spec: workflowapi.WorkflowSpec{
+			PodMetadata: &workflowapi.Metadata{
+				Labels: map[string]string{"pipeline/runid": "123e4567-e89b-12d3-a456-426655440001"},
+			},
 			ServiceAccountName: "SERVICE_ACCOUNT",
 			Arguments: workflowapi.Arguments{
 				Parameters: []workflowapi.Parameter{