diff --git a/plugins/updater/init.php b/plugins/updater/init.php
index fa283c8be..69d9b08b2 100644
--- a/plugins/updater/init.php
+++ b/plugins/updater/init.php
@@ -24,6 +24,8 @@ class Updater extends Plugin {
 		// __FILE__ is in plugins/updater so we need to go one level up
 		$work_dir = dirname(dirname(dirname(__FILE__)));
 		$parent_dir = dirname($work_dir);
+		// Set PATH to run "which"
+		putenv('PATH="$PATH:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin"');
 
 		$log = array();
 		if (!is_array($params)) $params = array();