diff --git a/src/Aerys/Handlers/DocRoot/DocRootHandler.php b/src/Aerys/Handlers/DocRoot/DocRootHandler.php
index <HASH>..<HASH> 100644
--- a/src/Aerys/Handlers/DocRoot/DocRootHandler.php
+++ b/src/Aerys/Handlers/DocRoot/DocRootHandler.php
@@ -45,7 +45,7 @@ class DocRootHandler {
         

         $this->docRoot = rtrim($docRoot, '/');

         $this->assignDefaultMimeTypes();

-        $this->multipartBoundary = uniqid();

+        $this->multipartBoundary = uniqid('', TRUE);

         

         $this->staleCacheClearanceSubscription = $reactor->schedule(function() {

             $this->cleanCache();
uniqid() now uses more_entropy=TRUE to avoid pathological slowdowns