diff --git a/horizon/values.yaml b/horizon/values.yaml
index 1ee832317b..c47d4592c8 100644
--- a/horizon/values.yaml
+++ b/horizon/values.yaml
@@ -388,6 +388,11 @@ conf:
         OPENSTACK_KEYSTONE_URL = "{{ tuple "identity" "internal" "api" . | include "helm-toolkit.endpoints.keystone_endpoint_uri_lookup" }}"
         OPENSTACK_KEYSTONE_DEFAULT_ROLE = "member"
 
+        # This setting specifies the name of the header with remote IP address. If not present,
+        # then REMOTE_ADDR header is used. The commom value for this setting is HTTP_X_REAL_IP
+        # or HTTP_X_FORWARDED_FORx
+        SECURE_PROXY_ADDR_HEADER = 'HTTP_X_FORWARDED_FOR'
+
         {{- if .Values.conf.horizon.local_settings.config.auth.sso.enabled }}
         # Enables keystone web single-sign-on if set to True.
         WEBSSO_ENABLED = True