diff --git a/helm-chart/renku/templates/notebooks/env-secret.yaml b/helm-chart/renku/templates/notebooks/env-secret.yaml
index 496d687d4d..a7cd3094c4 100644
--- a/helm-chart/renku/templates/notebooks/env-secret.yaml
+++ b/helm-chart/renku/templates/notebooks/env-secret.yaml
@@ -22,6 +22,7 @@ stringData:
   NB_SESSIONS__OIDC__TOKEN_URL: {{ .Values.notebooks.oidc.tokenUrl | default (printf "https://%s/auth/realms/Renku/protocol/openid-connect/token" .Values.global.renku.domain) }}
   NB_SESSIONS__OIDC__ISSUER_URL: {{ template "renku.keycloakIssuerUrl" . }}
   NB_SESSIONS__OIDC__ALLOW_UNVERIFIED_EMAIL: {{ .Values.notebooks.oidc.allowUnverifiedEmail | quote }}
+  NB_SESSIONS__INGRESS__CLASSNAME: {{ .Values.notebooks.sessionIngress.className | default "" }}
   NB_SESSIONS__INGRESS__HOST: {{ .Values.notebooks.sessionIngress.host | default .Values.global.renku.domain }}
   NB_SESSIONS__INGRESS__TLS_SECRET: {{ .Values.notebooks.sessionIngress.tlsSecret | default (printf "%s-ch-tls" .Release.Name) }}
   NB_SESSIONS__INGRESS__ANNOTATIONS: |
diff --git a/helm-chart/renku/values.yaml b/helm-chart/renku/values.yaml
index c7a41996ec..828c498396 100644
--- a/helm-chart/renku/values.yaml
+++ b/helm-chart/renku/values.yaml
@@ -210,10 +210,10 @@ global:
 ingress:
   ## Enables the creation of an ingress
   enabled: false
-  className: "" # nginx
+  ## The ingress class, e.g. "nginx"
+  className: ""
   ## Annotations for the created ingress
   annotations:
-    ## The ingress class
     cert-manager.io/cluster-issuer: letsencrypt-production # Use null as value if not using cert-manager to remove this entry
     nginx.ingress.kubernetes.io/proxy-body-size: "0" # Adjust to a reasonable value for production to avoid DOS attacks.
     nginx.ingress.kubernetes.io/proxy-request-buffering: "off" # Needed if GitLab is behind this ingress
@@ -889,10 +889,11 @@ notebooks:
     authUrl:
     allowUnverifiedEmail: false
   sessionIngress:
+    ## The ingress class, e.g. "nginx"
+    className: ""
     host:
     tlsSecret:
     annotations:
-      kubernetes.io/ingress.class: nginx
       nginx.ingress.kubernetes.io/proxy-body-size: "0"
       nginx.ingress.kubernetes.io/proxy-buffer-size: 8k
       nginx.ingress.kubernetes.io/proxy-request-buffering: "off"
diff --git a/minimal-deployment/minimal-deployment-values.yaml b/minimal-deployment/minimal-deployment-values.yaml
index 9b25cae53d..6e85e31772 100644
--- a/minimal-deployment/minimal-deployment-values.yaml
+++ b/minimal-deployment/minimal-deployment-values.yaml
@@ -36,8 +36,7 @@ notebooks:
                 values:
                   - user
   sessionIngress:
-    annotations:
-      kubernetes.io/ingress.class: webapprouting.kubernetes.azure.com
+    className: webapprouting.kubernetes.azure.com
   sessionTolerations:
     - effect: NoSchedule
       key: renku.io/dedicated