fix comment
diff --git a/src/http/ngx_http_special_response.c b/src/http/ngx_http_special_response.c
index 20a8fa7..5671f9b 100644
--- a/src/http/ngx_http_special_response.c
+++ b/src/http/ngx_http_special_response.c
@@ -307,7 +307,7 @@
ngx_string(ngx_http_error_495_page), /* 495, https certificate error */
ngx_string(ngx_http_error_496_page), /* 496, https no certificate */
ngx_string(ngx_http_error_497_page), /* 497, http to https */
- ngx_string(ngx_http_error_404_page), /* 498, invalid host name */
+ ngx_string(ngx_http_error_404_page), /* 498, canceled */
ngx_null_string, /* 499, client has closed connection */
ngx_string(ngx_http_error_500_page),