diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index da23af1..4867bed 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -4687,6 +4687,7 @@
                 case NGX_HTTP_TO_HTTPS:
                 case NGX_HTTPS_CERT_ERROR:
                 case NGX_HTTPS_NO_CERT:
+                case NGX_HTTP_REQUEST_HEADER_TOO_LARGE:
                     err->overwrite = NGX_HTTP_BAD_REQUEST;
             }
         }