diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index dbaa9563d..08fa95a93 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -4068,7 +4068,8 @@ ngx_http_upstream_finalize_request(ngx_http_request_t *r,
 
     if (!u->header_sent
         || rc == NGX_HTTP_REQUEST_TIME_OUT
-        || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST)
+        || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST
+        || (u->pipe && u->pipe->downstream_error))
     {
         ngx_http_finalize_request(r, rc);
         return;