diff --git a/helmchart/single-sign-on/values.yaml b/helmchart/single-sign-on/values.yaml
index 32c6c1f6e758cb4fc42bf101ee94bc16a1736a36..e32cf62b55a2b8761aef72513c5723d59de7b1d8 100644
--- a/helmchart/single-sign-on/values.yaml
+++ b/helmchart/single-sign-on/values.yaml
@@ -69,7 +69,13 @@ kratos:
                 },
                 "username": {
                   "type": "string",
-                  "title": "Preferred username"
+                  "ory.sh/kratos": {
+                    "credentials": {
+                      "password": {
+                        "identifier": true
+                      }
+                    }
+                  }
                 },
                 "name": {
                   "type": "string",