diff --git a/controllers/sensor/validate.go b/controllers/sensor/validate.go
index be38010a8f5d..c2deeab4a526 100644
--- a/controllers/sensor/validate.go
+++ b/controllers/sensor/validate.go
@@ -188,7 +188,7 @@ func validateArgoWorkflowTrigger(trigger *v1alpha1.ArgoWorkflowTrigger) error {
 		return errors.New("must provide group, version and resource for the resource")
 	}
 	switch trigger.Operation {
-	case v1alpha1.Submit, v1alpha1.Suspend, v1alpha1.Retry, v1alpha1.Resume, v1alpha1.Resubmit:
+	case v1alpha1.Submit, v1alpha1.Suspend, v1alpha1.Retry, v1alpha1.Resume, v1alpha1.Resubmit, v1alpha1.Terminate:
 	default:
 		return errors.Errorf("unknown operation type %s", string(trigger.Operation))
 	}
diff --git a/docs/sensors/triggers/argo-workflow.md b/docs/sensors/triggers/argo-workflow.md
index d98efaabca93..b822fc416b97 100644
--- a/docs/sensors/triggers/argo-workflow.md
+++ b/docs/sensors/triggers/argo-workflow.md
@@ -66,6 +66,6 @@ To make use of Argo CLI operations, The sensor provides the `argoWorkflow` trigg
           group: argoproj.io
           version: v1alpha1
           resource: workflows
-          operation: submit  # submit, resubmit, resume, retry or suspend 
+          operation: submit  # submit, resubmit, resume, retry, suspend or terminate
 
 Complete example is available [here](https://raw.githubusercontent.com/argoproj/argo-events/stable/examples/sensors/special-workflow-trigger.yaml).
diff --git a/pkg/apis/sensor/v1alpha1/types.go b/pkg/apis/sensor/v1alpha1/types.go
index 09344eeb45a0..f9f8970b6790 100644
--- a/pkg/apis/sensor/v1alpha1/types.go
+++ b/pkg/apis/sensor/v1alpha1/types.go
@@ -46,11 +46,12 @@ type ArgoWorkflowOperation string
 
 // possible values for ArgoWorkflowOperation
 const (
-	Submit   ArgoWorkflowOperation = "submit"   // submit a workflow
-	Suspend  ArgoWorkflowOperation = "suspend"  // suspends a workflow
-	Resubmit ArgoWorkflowOperation = "resubmit" // resubmit a workflow
-	Retry    ArgoWorkflowOperation = "retry"    // retry a workflow
-	Resume   ArgoWorkflowOperation = "resume"   // resume a workflow
+	Submit    ArgoWorkflowOperation = "submit"    // submit a workflow
+	Suspend   ArgoWorkflowOperation = "suspend"   // suspends a workflow
+	Resubmit  ArgoWorkflowOperation = "resubmit"  // resubmit a workflow
+	Retry     ArgoWorkflowOperation = "retry"     // retry a workflow
+	Resume    ArgoWorkflowOperation = "resume"    // resume a workflow
+	Terminate ArgoWorkflowOperation = "terminate" // terminate a workflow
 )
 
 // Comparator refers to the comparator operator for a data filter
diff --git a/sensors/triggers/argo-workflow/argo-workflow.go b/sensors/triggers/argo-workflow/argo-workflow.go
index 4008ebdfbb50..4e7c8177d211 100644
--- a/sensors/triggers/argo-workflow/argo-workflow.go
+++ b/sensors/triggers/argo-workflow/argo-workflow.go
@@ -164,6 +164,8 @@ func (t *ArgoWorkflowTrigger) Execute(ctx context.Context, events map[string]*v1
 		cmd = exec.Command("argo", "-n", namespace, "retry", name)
 	case v1alpha1.Suspend:
 		cmd = exec.Command("argo", "-n", namespace, "suspend", name)
+	case v1alpha1.Terminate:
+		cmd = exec.Command("argo", "-n", namespace, "terminate", name)
 	default:
 		return nil, errors.Errorf("unknown operation type %s", string(op))
 	}