diff --git a/controllers/argocd/route.go b/controllers/argocd/route.go
index bbf07d47c..9d73e4870 100644
--- a/controllers/argocd/route.go
+++ b/controllers/argocd/route.go
@@ -302,6 +302,10 @@ func (r *ReconcileArgoCD) reconcileApplicationSetControllerWebhookRoute(cr *argo
 		}
 	}
 
+	if len(route.Spec.Host) > 63 {
+		route.Spec.Host = route.Spec.Host[:63]
+	}
+
 	if cr.Spec.ApplicationSet == nil || !cr.Spec.ApplicationSet.WebhookServer.Route.Enabled {
 		return nil // Route not enabled, move along...
 	}
diff --git a/controllers/argocd/route_test.go b/controllers/argocd/route_test.go
index 626520e55..8bad48708 100644
--- a/controllers/argocd/route_test.go
+++ b/controllers/argocd/route_test.go
@@ -213,6 +213,65 @@ func TestReconcileRouteUnsetsInsecure(t *testing.T) {
 	}
 }
 
+func TestReconcileRoute(t *testing.T) {
+	routeAPIFound = true
+	ctx := context.Background()
+	logf.SetLogger(ZapLogger(true))
+	argoCD := makeArgoCD(func(a *argoproj.ArgoCD) {
+		a.Spec.Server.Route.Enabled = true
+		a.Spec.ApplicationSet = &argoproj.ArgoCDApplicationSet{
+			WebhookServer: argoproj.WebhookServerSpec{
+				Route: argoproj.ArgoCDRouteSpec{
+					Enabled: true,
+				},
+			},
+		}
+	})
+
+	resObjs := []client.Object{argoCD}
+	subresObjs := []client.Object{argoCD}
+	runtimeObjs := []runtime.Object{}
+	sch := makeTestReconcilerScheme(argoproj.AddToScheme, configv1.Install, routev1.Install)
+	cl := makeTestReconcilerClient(sch, resObjs, subresObjs, runtimeObjs)
+	r := makeTestReconciler(cl, sch)
+	name := "argocd-applicationset-controller-webhook"
+	route := &routev1.Route{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      name,
+			Namespace: testNamespace,
+		},
+		Spec: routev1.RouteSpec{
+			Host: name + "-openshift-gitops.apps-crc.testing",
+		},
+	}
+	err := r.Client.Create(context.TODO(), route)
+	assert.NoError(t, err)
+	assert.NoError(t, createNamespace(r, argoCD.Namespace, ""))
+
+	req := reconcile.Request{
+		NamespacedName: types.NamespacedName{
+			Name:      testArgoCDName,
+			Namespace: testNamespace,
+		},
+	}
+
+	_, err = r.Reconcile(context.TODO(), req)
+	assert.NoError(t, err)
+
+	loaded := &routev1.Route{}
+	err = r.Client.Get(ctx, types.NamespacedName{Name: name, Namespace: testNamespace}, loaded)
+	fatalIfError(t, err, "failed to load route %q: %s", name, err)
+
+	wantRoute := &routev1.RouteSpec{
+		Host: "argocd-applicationset-controller-webhook-openshift-gitops.apps-",
+	}
+
+	if diff := cmp.Diff(wantRoute.Host, loaded.Spec.Host); diff != "" {
+		t.Fatalf("failed to reconcile route:\n%s", diff)
+	}
+
+}
+
 func makeReconciler(t *testing.T, acd *argoproj.ArgoCD, objs ...runtime.Object) *ReconcileArgoCD {
 	t.Helper()
 	s := scheme.Scheme