diff --git a/install/lang/en_us/install.php b/install/lang/en_us/install.php
new file mode 100644
index 00000000000..4c21e289f6d
--- /dev/null
+++ b/install/lang/en_us/install.php
@@ -0,0 +1,31 @@
+<?php
+
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Automatically generated strings for Moodle 2.2dev installer
+ *
+ * Do not edit this file manually! It contains just a subset of strings
+ * needed during the very first steps of installation. This file was
+ * generated automatically by export-installer.php (which is part of AMOS
+ * {@link http://docs.moodle.org/dev/Languages/AMOS}) using the
+ * list of strings defined in /install/stringnames.txt.
+ *
+ * @package   installer
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+$string['welcomep50'] = 'The use of all the applications in this package is governed by their respective licenses. The complete <strong>{$a->installername}</strong> package is <a href="http://www.opensource.org/docs/definition_plain.html">open source</a> and is distributed under the <a href="http://www.gnu.org/copyleft/gpl.html">GPL</a> license.';