diff --git a/phpseclib/Crypt/Rijndael.php b/phpseclib/Crypt/Rijndael.php
index dc22488b..48795d22 100644
--- a/phpseclib/Crypt/Rijndael.php
+++ b/phpseclib/Crypt/Rijndael.php
@@ -879,7 +879,7 @@ class Crypt_Rijndael {
                 if ($this->continuousBuffer) {
                     $this->decryptIV = $xor;
                     if ($start = strlen($ciphertext) % $block_size) {
-                        $buffer['ciphertext'] = substr($key, $start) . $buffer['encrypted'];
+                        $buffer['ciphertext'] = substr($key, $start) . $buffer['ciphertext'];
                     }
                 }
                 break;
@@ -1493,4 +1493,4 @@ class Crypt_Rijndael {
 }
 
 // vim: ts=4:sw=4:et:
-// vim6: fdl=1:
\ No newline at end of file
+// vim6: fdl=1: