diff --git a/lib/Horde/Crypt/Blowfish.php b/lib/Horde/Crypt/Blowfish.php
index 5587a33..3458ef9 100644
--- a/lib/Horde/Crypt/Blowfish.php
+++ b/lib/Horde/Crypt/Blowfish.php
@@ -51,6 +51,13 @@ class Horde_Crypt_Blowfish
      */
     protected $_crypt;
 
+    /**
+     * iv.
+     *
+     * @var bool
+     */
+    protected $iv;
+
     /**
      * Constructor.
      *