diff --git a/CHANGELOG.md b/CHANGELOG.md
index e3634147..876400bb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ## master / unreleased
 
+* [BUGFIX] fix: upstream_protocol reference in auth_orgs #509
 * [ENHANCEMENT] Add `nginx.config.upstream_protocol` field to configure the upstream protocol in the nginx configuration #506
 
 ## 2.4.0 / 2024-07-18
diff --git a/templates/nginx/nginx-config.yaml b/templates/nginx/nginx-config.yaml
index 830d3233..7945a0ef 100644
--- a/templates/nginx/nginx-config.yaml
+++ b/templates/nginx/nginx-config.yaml
@@ -160,7 +160,7 @@ data:
         {{- range $org := compact .Values.nginx.config.auth_orgs | uniq }}
         location = /api/v1/push/{{ $org }} {
           proxy_set_header      X-Scope-OrgID {{ $org }};
-          proxy_pass      {{ .Values.nginx.config.upstream_protocol }}://{{ template "cortex.fullname" $ }}-distributor.{{ $rootDomain }}/api/v1/push;
+          proxy_pass      {{ $.Values.nginx.config.upstream_protocol }}://{{ template "cortex.fullname" $ }}-distributor.{{ $rootDomain }}/api/v1/push;
         }
         {{- end }}
         {{- end }}