diff --git a/src/http/ngx_http_request_body.c b/src/http/ngx_http_request_body.c
index 0cae88f77..b72614ff9 100644
--- a/src/http/ngx_http_request_body.c
+++ b/src/http/ngx_http_request_body.c
@@ -62,11 +62,13 @@ ngx_http_read_client_request_body(ngx_http_request_t *r,
     /*
      * set by ngx_pcalloc():
      *
+     *     rb->temp_file = NULL;
      *     rb->bufs = NULL;
      *     rb->buf = NULL;
      *     rb->free = NULL;
      *     rb->busy = NULL;
      *     rb->chunked = NULL;
+     *     rb->received = 0;
      */
 
     rb->rest = -1;