diff --git a/bin/arc b/bin/arc
index 5f6aaf70..51528ca0 100755
--- a/bin/arc
+++ b/bin/arc
@@ -1,10 +1,10 @@
 #!/usr/bin/env php
 <?php
 
 if (function_exists('pcntl_async_signals')) {
   pcntl_async_signals(true);
 } else {
   declare(ticks = 1);
 }
 
-return require_once dirname(__DIR__).'/support/init/init-arcanist.php';
+require_once dirname(__DIR__).'/support/init/init-arcanist.php';
diff --git a/bin/phage b/bin/phage
index 5f6aaf70..51528ca0 100755
--- a/bin/phage
+++ b/bin/phage
@@ -1,10 +1,10 @@
 #!/usr/bin/env php
 <?php
 
 if (function_exists('pcntl_async_signals')) {
   pcntl_async_signals(true);
 } else {
   declare(ticks = 1);
 }
 
-return require_once dirname(__DIR__).'/support/init/init-arcanist.php';
+require_once dirname(__DIR__).'/support/init/init-arcanist.php';
diff --git a/support/init/init-arcanist.php b/support/init/init-arcanist.php
index 563ef1e3..c0a04568 100644
--- a/support/init/init-arcanist.php
+++ b/support/init/init-arcanist.php
@@ -1,6 +1,8 @@
 <?php
 
 require_once dirname(__FILE__).'/init-script.php';
 
 $runtime = new ArcanistRuntime();
-return $runtime->execute($argv);
+$err = $runtime->execute($argv);
+
+exit($err);