diff --git a/src/base/bittorrent/torrentcreatorthread.cpp b/src/base/bittorrent/torrentcreatorthread.cpp
index bfa8ca83e..c8d19c16e 100644
--- a/src/base/bittorrent/torrentcreatorthread.cpp
+++ b/src/base/bittorrent/torrentcreatorthread.cpp
@@ -35,8 +35,8 @@
 #include <boost/bind.hpp>
 #include <libtorrent/bencode.hpp>
 #include <libtorrent/create_torrent.hpp>
-#include <libtorrent/torrent_info.hpp>
 #include <libtorrent/storage.hpp>
+#include <libtorrent/torrent_info.hpp>
 
 #include <QFile>
 
@@ -44,16 +44,19 @@
 #include "base/utils/misc.h"
 #include "base/utils/string.h"
 
-namespace libt = libtorrent;
-using namespace BitTorrent;
-
-// do not include files and folders whose
-// name starts with a .
-bool fileFilter(const std::string &f)
+namespace
 {
-    return !Utils::Fs::fileName(QString::fromStdString(f)).startsWith('.');
+    // do not include files and folders whose
+    // name starts with a .
+    bool fileFilter(const std::string &f)
+    {
+        return !Utils::Fs::fileName(QString::fromStdString(f)).startsWith('.');
+    }
 }
 
+namespace libt = libtorrent;
+using namespace BitTorrent;
+
 TorrentCreatorThread::TorrentCreatorThread(QObject *parent)
     : QThread(parent)
     , m_private(false)