diff --git a/cmd/controller/app/controller.go b/cmd/controller/app/controller.go
index d8ac30a99..4f8e8ec61 100644
--- a/cmd/controller/app/controller.go
+++ b/cmd/controller/app/controller.go
@@ -27,11 +27,7 @@ import (
 	kubeinformers "k8s.io/client-go/informers"
 )
 
-const (
-	controllerAgentName = "cert-manager-controller"
-
-	defaultNamespace = ""
-)
+const controllerAgentName = "cert-manager-controller"
 
 func Run(opts *options.ControllerOptions, stopCh <-chan struct{}) {
 	ctx, kubeCfg, err := buildControllerContext(opts)
diff --git a/cmd/ingress-shim/app.go b/cmd/ingress-shim/app.go
index 6a65409eb..6e8f178ca 100644
--- a/cmd/ingress-shim/app.go
+++ b/cmd/ingress-shim/app.go
@@ -26,11 +26,7 @@ import (
 	kubeinformers "k8s.io/client-go/informers"
 )
 
-const (
-	controllerAgentName = "ingress-shim-controller"
-
-	defaultNamespace = ""
-)
+const controllerAgentName = "ingress-shim-controller"
 
 func Run(opts *options.ControllerOptions, stopCh <-chan struct{}) {
 	ctrl, kubeCfg, err := buildController(opts, stopCh)