diff --git a/cmd/alertmanager/main.go b/cmd/alertmanager/main.go
index 46365984..65726ac5 100644
--- a/cmd/alertmanager/main.go
+++ b/cmd/alertmanager/main.go
@@ -438,9 +438,8 @@ func run() int {
 			if err != nil {
 				return err
 			}
-			receivers = append(receivers, notify.NewReceiver(rcv.Name, true, integrations))
 			// rcv.Name is guaranteed to be unique across all receivers.
-			//receivers[rcv.Name] = integrations
+			receivers = append(receivers, notify.NewReceiver(rcv.Name, true, integrations))
 			integrationsNum += len(integrations)
 		}
 
diff --git a/cmd/alertmanager/main_test.go b/cmd/alertmanager/main_test.go
index ff3460a2..3b36b884 100644
--- a/cmd/alertmanager/main_test.go
+++ b/cmd/alertmanager/main_test.go
@@ -33,7 +33,7 @@ func TestBuildReceiverIntegrations(t *testing.T) {
 	for _, tc := range []struct {
 		receiver *config.Receiver
 		err      bool
-		exp      []notify.Integration
+		exp      []*notify.Integration
 	}{
 		{
 			receiver: &config.Receiver{
@@ -50,7 +50,7 @@ func TestBuildReceiverIntegrations(t *testing.T) {
 					},
 				},
 			},
-			exp: []notify.Integration{
+			exp: []*notify.Integration{
 				notify.NewIntegration(nil, sendResolved(false), "webhook", 0),
 				notify.NewIntegration(nil, sendResolved(true), "webhook", 1),
 			},