diff --git a/install-new/models/install.php b/install-new/models/install.php
index a09cea8b4..0fa047ba7 100644
--- a/install-new/models/install.php
+++ b/install-new/models/install.php
@@ -112,6 +112,8 @@ class InstallModelInstall extends InstallAbstractModel
 			$settings_constants['_RIJNDAEL_KEY_'] = Tools::passwdGen(mcrypt_get_key_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB));
 			$settings_constants['_RIJNDAEL_IV_'] = base64_encode(mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB), MCRYPT_RAND));
 		}
+		else
+			Configuration::updateGlobalValue('PS_CIPHER_ALGORITHM', 0);
 
 		$settings_content = "<?php\n";
 		foreach ($settings_constants as $constant => $value)