diff --git a/xhprof_lib/utils/xhprof_runs.php b/xhprof_lib/utils/xhprof_runs.php
index 2a22a5dc..115645bd 100644
--- a/xhprof_lib/utils/xhprof_runs.php
+++ b/xhprof_lib/utils/xhprof_runs.php
@@ -149,7 +149,9 @@ function list_runs() {
     if (is_dir($this->dir)) {
         echo "<hr/>Existing runs:\n<ul>\n";
         $files = glob("{$this->dir}/*.{$this->suffix}");
-        usort($files, create_function('$a,$b', 'return filemtime($b) - filemtime($a);'));
+        usort($files, function($a, $b) {
+            return filemtime($b) - filemtime($a);
+        });
         foreach ($files as $file) {
             list($run,$source) = explode('.', basename($file));
             echo '<li><a href="' . htmlentities($_SERVER['SCRIPT_NAME'])