diff --git a/src/http/ngx_http_upstream.h b/src/http/ngx_http_upstream.h
index 428253c..a38f65b 100644
--- a/src/http/ngx_http_upstream.h
+++ b/src/http/ngx_http_upstream.h
@@ -52,10 +52,15 @@
 
     size_t                          send_lowat;
     size_t                          header_buffer_size;
+
     size_t                          busy_buffers_size;
     size_t                          max_temp_file_size;
     size_t                          temp_file_write_size;
 
+    size_t                          busy_buffers_size_conf;
+    size_t                          max_temp_file_size_conf;
+    size_t                          temp_file_write_size_conf;
+
     ngx_uint_t                      next_upstream;
     ngx_uint_t                      method;
 
@@ -95,6 +100,9 @@
 typedef struct {
     ngx_list_t                      headers;
 
+    ngx_uint_t                      status_n;
+    ngx_str_t                       status_line;
+
     ngx_table_elt_t                *status;
     ngx_table_elt_t                *date;
     ngx_table_elt_t                *server;
@@ -112,6 +120,7 @@
     ngx_table_elt_t                *last_modified;
     ngx_table_elt_t                *location;
     ngx_table_elt_t                *accept_ranges;
+    ngx_table_elt_t                *www_authenticate;
 
 #if (NGX_HTTP_GZIP)
     ngx_table_elt_t                *content_encoding;