diff --git a/src/http/ngx_http.h b/src/http/ngx_http.h
index 719781e..ca2d5c1 100644
--- a/src/http/ngx_http.h
+++ b/src/http/ngx_http.h
@@ -245,6 +245,9 @@
 int ngx_http_discard_body(ngx_http_request_t *r);
 
 
+int ngx_http_special_response(ngx_http_request_t *r, int error);
+
+
 extern int  ngx_max_module;
 extern ngx_array_t  ngx_http_servers;