diff --git a/manual/new/index.php b/manual/new/index.php
index 82d2b72aa..69f2539e4 100644
--- a/manual/new/index.php
+++ b/manual/new/index.php
@@ -56,7 +56,7 @@ function autoload($class)
  */
 function getSvnRevision($file)
 {
-    $cmd = 'HOME=/tmp /usr/bin/svn info ' . $file;
+    $cmd = 'HOME=/tmp /usr/bin/svn info ' . escapeshellcmd($file);
     exec($cmd, $output);
     foreach ($output as $line) {
         if (preg_match('/^Last Changed Rev: ([0-9]+)$/', $line, $matches)) {