diff --git a/charts/keycloak/values.yaml b/charts/keycloak/values.yaml
index 5c8093c5..b77a0e8e 100644
--- a/charts/keycloak/values.yaml
+++ b/charts/keycloak/values.yaml
@@ -19,6 +19,7 @@ ingress:
   annotations:
     cert-manager.io/cluster-issuer: letsencrypt-production
     nginx.ingress.kubernetes.io/enable-cors: "true"
+    nginx.ingress.kubernetes.io/backend-protocol: HTTP
     nginx.ingress.kubernetes.io/proxy-buffer-size: 128k
     nginx.ingress.kubernetes.io/ssl-redirect: "true"
   enabled: true