diff --git a/scripts/__init_script__.php b/scripts/__init_script__.php
index 7b331195b4..f984c57945 100644
--- a/scripts/__init_script__.php
+++ b/scripts/__init_script__.php
@@ -1,80 +1,88 @@
 <?php
 
 /*
  * Copyright 2012 Facebook, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *   http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 
 error_reporting(E_ALL | E_STRICT);
 ini_set('display_errors', 1);
 
 $include_path = ini_get('include_path');
 ini_set(
   'include_path',
   $include_path.PATH_SEPARATOR.dirname(__FILE__).'/../../');
 @include_once 'libphutil/scripts/__init_script__.php';
 if (!@constant('__LIBPHUTIL__')) {
   echo "ERROR: Unable to load libphutil. Update your PHP 'include_path' to ".
        "include the parent directory of libphutil/.\n";
   exit(1);
 }
 
 phutil_load_library(dirname(__FILE__).'/../src/');
 
 // NOTE: This is dangerous in general, but we know we're in a script context and
 // are not vulnerable to CSRF.
 AphrontWriteGuard::allowDangerousUnguardedWrites(true);
 
 require_once dirname(dirname(__FILE__)).'/conf/__init_conf__.php';
 
 $env = isset($_SERVER['PHABRICATOR_ENV'])
   ? $_SERVER['PHABRICATOR_ENV']
   : getenv('PHABRICATOR_ENV');
 if (!$env) {
   echo phutil_console_wrap(
     phutil_console_format(
       "**ERROR**: PHABRICATOR_ENV Not Set\n\n".
       "Define the __PHABRICATOR_ENV__ environment variable before running ".
       "this script. You can do it on the command line like this:\n\n".
       "  $ PHABRICATOR_ENV=__custom/myconfig__ %s ...\n\n".
       "Replace __custom/myconfig__ with the path to your configuration file. ".
       "For more information, see the 'Configuration Guide' in the ".
       "Phabricator documentation.\n\n",
       $argv[0]));
   exit(1);
 }
 
 $conf = phabricator_read_config_file($env);
 $conf['phabricator.env'] = $env;
 
 PhabricatorEnv::setEnvConfig($conf);
 
 phutil_load_library('arcanist/src');
 
 foreach (PhabricatorEnv::getEnvConfig('load-libraries') as $library) {
   phutil_load_library($library);
 }
 
 PhutilErrorHandler::initialize();
 PhabricatorEventEngine::initialize();
 
 $tz = PhabricatorEnv::getEnvConfig('phabricator.timezone');
 if ($tz) {
   date_default_timezone_set($tz);
 }
 
 $translation = PhabricatorEnv::newObjectFromConfig('translation.provider');
 PhutilTranslator::getInstance()
   ->setLanguage($translation->getLanguage())
   ->addTranslations($translation->getTranslations());
+
+// Append any paths to $PATH if we need to.
+$paths = PhabricatorEnv::getEnvConfig('environment.append-paths');
+if (!empty($paths)) {
+  $current_env_path = getenv('PATH');
+  $new_env_paths = implode(':', $paths);
+  putenv('PATH='.$current_env_path.':'.$new_env_paths);
+}