diff --git a/phpBB/phpbb/db/migration/data/v310/reset_missing_captcha_plugin.php b/phpBB/phpbb/db/migration/data/v310/reset_missing_captcha_plugin.php
new file mode 100644
index 0000000000..8fa6a3ff5b
--- /dev/null
+++ b/phpBB/phpbb/db/migration/data/v310/reset_missing_captcha_plugin.php
@@ -0,0 +1,33 @@
+<?php
+/**
+*
+* @package migration
+* @copyright (c) 2014 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+namespace phpbb\db\migration\data\v310;
+
+/**
+* Class captcha_plugin
+*
+* Reset the captcha setting to the default plugin if the defined 'captcha_plugin' is missing.
+*/
+class reset_missing_captcha_plugin extends \phpbb\db\migration\migration
+{
+	static public function depends_on()
+	{
+		return array('\phpbb\db\migration\data\v310\dev');
+	}
+
+	public function update_data()
+	{
+		return array(
+			array('if', array(
+				(!is_file($this->phpbb_root_path . "includes/captcha/plugins/{$this->config['captcha_plugin']}_plugin." . $this->php_ext)),
+				array('config.update', array('captcha_plugin', 'phpbb_captcha_nogd')),
+			)),
+		);
+	}
+}