diff --git a/CHANGELOG.md b/CHANGELOG.md
index a151441e..143cc29b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+- **Helm Ingress**: `customAnnotations` are now merged with class-specific annotations (nginx/traefik) instead of being ignored when `ingress.className` is set.
+
 ### Added
 - **OpenStack Keystone Authentication Integration**: Full support for OpenStack Keystone authentication via X-Auth-Token headers
   - Tower-based middleware (`KeystoneAuthLayer`) self-contained within `rustfs-keystone` crate
diff --git a/helm/README.md b/helm/README.md
index 7305b7ed..ad973d59 100644
--- a/helm/README.md
+++ b/helm/README.md
@@ -71,7 +71,7 @@ RustFS helm chart supports **standalone and distributed mode**. For standalone m
 | ingress.nginxAnnotations."nginx.ingress.kubernetes.io/session-cookie-hash" | string | `"sha1"` |  |
 | ingress.nginxAnnotations."nginx.ingress.kubernetes.io/session-cookie-max-age" | string | `"3600"` |  |
 | ingress.nginxAnnotations."nginx.ingress.kubernetes.io/session-cookie-name" | string | `"rustfs"` |  |
-| ingress.customAnnotations | dict | `{}` |Customize annotations.  |
+| ingress.customAnnotations | dict | `{}` | Additional custom annotations, merged with class-specific stickiness annotations. |
 | ingress.traefikAnnotations."traefik.ingress.kubernetes.io/service.sticky.cookie" | string | `"true"` |  |
 | ingress.traefikAnnotations."traefik.ingress.kubernetes.io/service.sticky.cookie.httponly" | string | `"true"` |  |
 | ingress.traefikAnnotations."traefik.ingress.kubernetes.io/service.sticky.cookie.name" | string | `"rustfs"` |  |
diff --git a/helm/rustfs/templates/ingress.yaml b/helm/rustfs/templates/ingress.yaml
index 3c802140..c2b841d7 100644
--- a/helm/rustfs/templates/ingress.yaml
+++ b/helm/rustfs/templates/ingress.yaml
@@ -1,11 +1,12 @@
 {{- if .Values.ingress.enabled -}}
 {{- $ingressAnnotations := dict }}
 {{- if eq .Values.ingress.className "nginx" }}
-{{- $ingressAnnotations = .Values.ingress.nginxAnnotations }}
+{{- $ingressAnnotations = deepCopy (default (dict) .Values.ingress.nginxAnnotations) }}
 {{- else if eq .Values.ingress.className "traefik" }}
-{{- $ingressAnnotations = .Values.ingress.traefikAnnotations }}
-{{- else if eq .Values.ingress.className "" }}
-{{- $ingressAnnotations = .Values.ingress.customAnnotations }}
+{{- $ingressAnnotations = deepCopy (default (dict) .Values.ingress.traefikAnnotations) }}
+{{- end }}
+{{- with .Values.ingress.customAnnotations }}
+{{- $ingressAnnotations = merge $ingressAnnotations . }}
 {{- end }}
 apiVersion: networking.k8s.io/v1
 kind: Ingress
diff --git a/helm/rustfs/values.yaml b/helm/rustfs/values.yaml
index 9acd3533..71e1d6b9 100644
--- a/helm/rustfs/values.yaml
+++ b/helm/rustfs/values.yaml
@@ -158,8 +158,8 @@ ingress:
     nginx.ingress.kubernetes.io/session-cookie-hash: sha1
     nginx.ingress.kubernetes.io/session-cookie-max-age: "3600"
     nginx.ingress.kubernetes.io/session-cookie-name: rustfs
-  customAnnotations: # Specify custom annotations
-    {} # Customize annotations
+  customAnnotations: # Additional custom annotations (merged with class-specific annotations)
+    {}
   hosts:
     - host: example.rustfs.com
       paths: