diff --git a/chart/values.yaml b/chart/values.yaml
index 3e3bb2ca62f862d0ecae32474d7aa6faff8b022d..349a341003e159868f63ede837506e295907c5c1 100644
--- a/chart/values.yaml
+++ b/chart/values.yaml
@@ -99,6 +99,7 @@ ingress:
     nginx.ingress.kubernetes.io/server-snippet: |
       client_header_buffer_size 256k;
       large_client_header_buffers 32 256k;
+      underscores_in_headers on;
   hosts: []
   tls: []
   #  - secretName: chart-example-tls