diff --git a/system/libraries/Encrypt.php b/system/libraries/Encrypt.php
index 8beff75..b27847a 100644
--- a/system/libraries/Encrypt.php
+++ b/system/libraries/Encrypt.php
@@ -216,7 +216,7 @@
 		$dec = $this->_xor_decode($dec, $key);
 
 		// set the mcrypt mode back to what it should be, typically MCRYPT_MODE_CBC
-		$this->set_mode(MCRYPT_MODE_CBC);
+		$this->set_mode($current_mode);
 
 		// and re-encode
 		return base64_encode($this->mcrypt_encode($dec, $key));