diff --git a/install/update.php b/install/update.php
index 04c5289bf32a9b38bde119804459013fbae1ebc4..504a63713eab2f85cc62ccb4e23cda0ea866e1ae 100644
--- a/install/update.php
+++ b/install/update.php
@@ -545,7 +545,7 @@ $inst->create_mount_script();
 
 //* Create md5 filelist
 $md5_filename = '/usr/local/ispconfig/security/data/file_checksums_'.date('Y-m-d_h-i').'.md5';
-exec('find /usr/local/ispconfig -type f -print0 | xargs -0 md5sum > '.$md5_filename);
+exec('find /usr/local/ispconfig -type f -print0 | xargs -0 md5sum > '.$md5_filename . ' 2>/dev/null');
 chmod($md5_filename,0700);
 
 echo "Update finished.\n";