diff --git a/utilities/assert b/utilities/assert
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+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# Copyright 2012 Dag Wieers <dag@wieers.com>
+#
+# This file is part of Ansible
+#
+# Ansible 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.
+#
+# Ansible 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 Ansible.  If not, see <http://www.gnu.org/licenses/>.
+
+DOCUMENTATION = '''
+---
+module: assert
+short_description: Fail with custom message
+description:
+     - This module asserts that a given expression is true and can be a simpler alternative to the 'fail' module in some cases.
+version_added: "1.5"
+options:
+  that:
+    description:
+      - "A string expression of the same form that can be passed to the 'when' statement"
+    required: true
+author: Michael DeHaan
+'''
+
+EXAMPLES = '''
+- assert: ansible_os_family != "RedHat"
+- assert: "'foo' in some_command_result.stdout"
+'''