diff --git a/event/example_test.go b/event/example_test.go
index 0660b8f7d..bd521e837 100644
--- a/event/example_test.go
+++ b/event/example_test.go
@@ -24,9 +24,13 @@ import (
 	"github.com/vmware/govmomi/find"
 	"github.com/vmware/govmomi/simulator"
 	"github.com/vmware/govmomi/vim25"
+	"github.com/vmware/govmomi/vim25/mo"
 	"github.com/vmware/govmomi/vim25/types"
 )
 
+// ensure event.Manager implements the mo.Reference interface
+var _ mo.Reference = new(event.Manager)
+
 func ExampleManager_Events() {
 	simulator.Run(func(ctx context.Context, c *vim25.Client) error {
 		m := event.NewManager(c)
diff --git a/event/manager.go b/event/manager.go
index 45698a8dc..c423c1837 100644
--- a/event/manager.go
+++ b/event/manager.go
@@ -50,6 +50,11 @@ func NewManager(c *vim25.Client) *Manager {
 	return &m
 }
 
+// Reference returns the event.Manager MOID
+func (m Manager) Reference() types.ManagedObjectReference {
+	return m.r
+}
+
 func (m Manager) Client() *vim25.Client {
 	return m.c
 }
diff --git a/task/manager.go b/task/manager.go
index 633085ab3..1fbf9ead2 100644
--- a/task/manager.go
+++ b/task/manager.go
@@ -23,6 +23,11 @@ func NewManager(c *vim25.Client) *Manager {
 	return &m
 }
 
+// Reference returns the task.Manager MOID
+func (m Manager) Reference() types.ManagedObjectReference {
+	return m.r
+}
+
 // CreateCollectorForTasks returns a task history collector, a specialized
 // history collector that gathers TaskInfo data objects.
 func (m Manager) CreateCollectorForTasks(ctx context.Context, filter types.TaskFilterSpec) (*HistoryCollector, error) {
diff --git a/task/wait_test.go b/task/wait_test.go
index 8ebd5b0aa..d3b24ff49 100644
--- a/task/wait_test.go
+++ b/task/wait_test.go
@@ -19,9 +19,13 @@ package task
 import (
 	"testing"
 
+	"github.com/vmware/govmomi/vim25/mo"
 	"github.com/vmware/govmomi/vim25/types"
 )
 
+// ensure task.Manager implements the mo.Reference interface
+var _ mo.Reference = new(Manager)
+
 func TestCallbackFn(t *testing.T) {
 	cb := &taskCallback{}