diff --git a/controllers/nginx/rootfs/etc/nginx/template/nginx.tmpl b/controllers/nginx/rootfs/etc/nginx/template/nginx.tmpl
index e0a1194086..295117e704 100644
--- a/controllers/nginx/rootfs/etc/nginx/template/nginx.tmpl
+++ b/controllers/nginx/rootfs/etc/nginx/template/nginx.tmpl
@@ -60,6 +60,7 @@ http {
 
     client_header_buffer_size       {{ $cfg.ClientHeaderBufferSize }};
     large_client_header_buffers     {{ $cfg.LargeClientHeaderBuffers }};
+    http2_max_field_size            {{ $cfg.ClientHeaderBufferSize }};
 
     types_hash_max_size             2048;
     server_names_hash_max_size      {{ $cfg.ServerNameHashMaxSize }};