diff --git a/internal/ingress/controller/controller.go b/internal/ingress/controller/controller.go
index 2522430b2..f180e905e 100644
--- a/internal/ingress/controller/controller.go
+++ b/internal/ingress/controller/controller.go
@@ -130,7 +130,7 @@ func (n *NGINXController) syncIngress(interface{}) error {
 		if !hosts.Has(server.Hostname) {
 			hosts.Insert(server.Hostname)
 		}
-		if server.Alias != "" && !hosts.Has(server.Hostname) {
+		if server.Alias != "" && !hosts.Has(server.Alias) {
 			hosts.Insert(server.Alias)
 		}