diff --git a/app/http.php b/app/http.php
index efa47ffbd..89ff646d7 100644
--- a/app/http.php
+++ b/app/http.php
@@ -35,6 +35,7 @@ $http
         'http_compression' => true,
         'http_compression_level' => 6,
         'package_max_length' => $payloadSize,
+        'buffer_output_size' => $payloadSize,
     ])
 ;