diff --git a/cmd/argocd-application-controller/commands/argocd_application_controller.go b/cmd/argocd-application-controller/commands/argocd_application_controller.go
index 519299ba8085a..6ab4dc2692932 100644
--- a/cmd/argocd-application-controller/commands/argocd_application_controller.go
+++ b/cmd/argocd-application-controller/commands/argocd_application_controller.go
@@ -93,7 +93,7 @@ func NewCommand() *cobra.Command {
 			config, err := clientConfig.ClientConfig()
 			errors.CheckError(err)
 			errors.CheckError(v1alpha1.SetK8SConfigDefaults(config))
-			config.UserAgent = fmt.Sprintf("argocd-application-controller/%s (%s)", vers.Version, vers.Platform)
+			config.UserAgent = fmt.Sprintf("%s/%s (%s)", common.DefaultApplicationControllerName, vers.Version, vers.Platform)
 
 			kubeClient := kubernetes.NewForConfigOrDie(config)
 			appClient := appclientset.NewForConfigOrDie(config)
@@ -213,13 +213,12 @@ func getClusterFilter(kubeClient *kubernetes.Clientset, settingsMgr *settings.Se
 	var replicas int
 	shard := env.ParseNumFromEnv(common.EnvControllerShard, -1, -math.MaxInt32, math.MaxInt32)
 
-	appControllerDeployment, _ := kubeClient.AppsV1().Deployments(settingsMgr.GetNamespace()).Get(context.Background(), common.ApplicationController, metav1.GetOptions{})
-
-	appControllerStatefulset, _ := kubeClient.AppsV1().StatefulSets(settingsMgr.GetNamespace()).Get(context.Background(), common.ApplicationController, metav1.GetOptions{})
+	applicationControllerName := env.StringFromEnv(common.EnvAppControllerName, common.DefaultApplicationControllerName)
+	appControllerDeployment, _ := kubeClient.AppsV1().Deployments(settingsMgr.GetNamespace()).Get(context.Background(), applicationControllerName, metav1.GetOptions{})
 
 	if appControllerDeployment != nil {
 		replicas = int(*appControllerDeployment.Spec.Replicas)
-	} else if appControllerStatefulset != nil {
+	} else {
 		replicas = env.ParseNumFromEnv(common.EnvControllerReplicas, 0, 0, math.MaxInt32)
 	}
 
@@ -241,7 +240,7 @@ func getClusterFilter(kubeClient *kubernetes.Clientset, settingsMgr *settings.Se
 				log.Warnf("conflict when getting shard from shard mapping configMap. Retrying (%d/3)", i)
 			}
 			errors.CheckError(err)
-		} else if appControllerStatefulset != nil {
+		} else {
 			if shard < 0 {
 				var err error
 				shard, err = sharding.InferShard()
diff --git a/controller/appcontroller.go b/controller/appcontroller.go
index 51bf50e703562..70b6aa9a9ffcb 100644
--- a/controller/appcontroller.go
+++ b/controller/appcontroller.go
@@ -204,7 +204,8 @@ func NewApplicationController(
 	})
 
 	readinessHealthCheck := func(r *http.Request) error {
-		appControllerDeployment, _ := kubeClientset.AppsV1().Deployments(settingsMgr.GetNamespace()).Get(context.Background(), common.ApplicationController, metav1.GetOptions{})
+		applicationControllerName := env.StringFromEnv(common.EnvAppControllerName, common.DefaultApplicationControllerName)
+		appControllerDeployment, _ := kubeClientset.AppsV1().Deployments(settingsMgr.GetNamespace()).Get(context.Background(), applicationControllerName, metav1.GetOptions{})
 		if appControllerDeployment != nil {
 			if appControllerDeployment.Spec.Replicas != nil && int(*appControllerDeployment.Spec.Replicas) <= 0 {
 				return fmt.Errorf("application controller deployment replicas is not set or is less than 0, replicas: %d", appControllerDeployment.Spec.Replicas)
diff --git a/util/db/db.go b/util/db/db.go
index 2f1f854739978..d5361ad148456 100644
--- a/util/db/db.go
+++ b/util/db/db.go
@@ -151,7 +151,8 @@ func StripCRLFCharacter(input string) string {
 // GetApplicationControllerReplicas gets the replicas of application controller
 func (db *db) GetApplicationControllerReplicas() int {
 	// get the replicas from application controller deployment, if the application controller deployment does not exist, check for environment variable
-	appControllerDeployment, _ := db.kubeclientset.AppsV1().Deployments(db.settingsMgr.GetNamespace()).Get(context.Background(), common.ApplicationController, metav1.GetOptions{})
+	applicationControllerName := env.StringFromEnv(common.EnvAppControllerName, common.DefaultApplicationControllerName)
+	appControllerDeployment, _ := db.kubeclientset.AppsV1().Deployments(db.settingsMgr.GetNamespace()).Get(context.Background(), applicationControllerName, metav1.GetOptions{})
 	if appControllerDeployment != nil {
 		return int(*appControllerDeployment.Spec.Replicas)
 	}