diff --git a/controllers/gce/controller/utils.go b/controllers/gce/controller/utils.go
index 617ce5fad..35fb3875c 100644
--- a/controllers/gce/controller/utils.go
+++ b/controllers/gce/controller/utils.go
@@ -45,6 +45,13 @@ const (
 	// rules for port 443 based on the TLS section.
 	allowHTTPKey = "kubernetes.io/ingress.allow-http"
 
+	// useNamedTLS tells the Ingress controller to use a specific GCE
+	// SSL certificate for its target proxies. If specified, the Ingress controller
+	// assigns the SSL certifiate by this name to the target proxies of the given
+	// Ingress. The controller *does not* manage this certificate, it is the users
+	// responsibility to create/delete it.
+	useNamedTLS = "kubernetes.io/ingress.use-named-tls"
+
 	// staticIPNameKey tells the Ingress controller to use a specific GCE
 	// static ip for its forwarding rules. If specified, the Ingress controller
 	// assigns the static ip by this name to the forwarding rules of the given