diff --git a/src/NonBufferedBody.php b/src/NonBufferedBody.php
index 88c01b6..8ea1944 100644
--- a/src/NonBufferedBody.php
+++ b/src/NonBufferedBody.php
@@ -96,15 +96,15 @@ public function isWritable()
     public function write($string)
     {
         $buffered = '';
-        while (0 < \ob_get_level()) {
-            $buffered = \ob_get_clean() . $buffered;
+        while (0 < ob_get_level()) {
+            $buffered = ob_get_clean() . $buffered;
         }
 
         echo $buffered . $string;
 
-        \flush();
+        flush();
 
-        return \strlen($string) + \strlen($buffered);
+        return strlen($string) + strlen($buffered);
     }
 
     /**