diff --git a/cmd/trainer-controller-manager/main.go b/cmd/trainer-controller-manager/main.go
index 28bb04b26b..17620af671 100644
--- a/cmd/trainer-controller-manager/main.go
+++ b/cmd/trainer-controller-manager/main.go
@@ -29,6 +29,7 @@ import (
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 	clientgoscheme "k8s.io/client-go/kubernetes/scheme"
 	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/client"
 	ctrlpkg "sigs.k8s.io/controller-runtime/pkg/controller"
 	"sigs.k8s.io/controller-runtime/pkg/healthz"
 	"sigs.k8s.io/controller-runtime/pkg/log/zap"
@@ -111,6 +112,11 @@ func main() {
 	}
 	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
 		Scheme: scheme,
+		Client: client.Options{
+			Cache: &client.CacheOptions{
+				Unstructured: true,
+			},
+		},
 		Metrics: metricsserver.Options{
 			BindAddress:   metricsAddr,
 			SecureServing: secureMetrics,