diff --git a/plugins/php/conf/app_start.php b/plugins/php/conf/app_start.php
index cd9b3e011d..afbc6bd061 100644
--- a/plugins/php/conf/app_start.php
+++ b/plugins/php/conf/app_start.php
@@ -46,8 +46,8 @@ function app_xhprof_end() {
 
 if (extension_loaded('xhprof')
 	&& isset($_GET[XHProf_Name]) && $_GET[XHProf_Name] == 'ok' &&
-	(! in_array($_SERVER['SCRIPT_NAME'], ['/xhprof_html/callgraph.php',
-		'/xhprof_html/index.php']))) {
+	(! in_array($_SERVER['SCRIPT_NAME'], array('/xhprof_html/callgraph.php',
+		'/xhprof_html/index.php'))))) {
 	app_xhprof_start();
 	register_shutdown_function('app_xhprof_end');
 	include_once $_SERVER['SCRIPT_FILENAME'];