diff --git a/externals/phpqrcode/phpqrcode.php b/externals/phpqrcode/phpqrcode.php
--- a/externals/phpqrcode/phpqrcode.php
+++ b/externals/phpqrcode/phpqrcode.php
@@ -1159,7 +1159,7 @@
         {
             try {
 
-                $bs = new QRbitrtream();
+                $bs = new QRbitstream();
                 
                 $bs->appendNum(4, 0x8);
                 $bs->appendNum(QRspec::lengthIndicator(QR_MODE_KANJI, $version), (int)($this->size / 2));