diff --git a/src/misc.cpp b/src/misc.cpp
index 6eab2efad..4eecd47ca 100644
--- a/src/misc.cpp
+++ b/src/misc.cpp
@@ -175,7 +175,7 @@ void misc::shutdownComputer(bool sleep) {
   if (sleep)
     SetSuspendState(false, false, false);
   else
-    InitiateSystemShutdownA(0, tr("qBittorrent will shutdown the computer now because all downloads are complete.").toLocal8Bit().data(), 10, true, false);
+    InitiateSystemShutdownA(0, QCoreApplication::translate("misc", "qBittorrent will shutdown the computer now because all downloads are complete.").toLocal8Bit().data(), 10, true, false);
 
   // Disable shutdown privilege.
   tkp.Privileges[0].Attributes = 0;
@@ -233,17 +233,17 @@ int misc::pythonVersion() {
 // value must be given in bytes
 QString misc::friendlyUnit(qreal val, bool is_speed) {
   if (val < 0)
-    return tr("Unknown", "Unknown (size)");
+    return QCoreApplication::translate("misc", "Unknown", "Unknown (size)");
   int i = 0;
   while(val >= 1024. && i++<6)
     val /= 1024.;
   QString ret;
   if (i == 0)
-    ret = QString::number((long)val) + " " + tr(units[0].source, units[0].comment);
+    ret = QString::number((long)val) + " " + QCoreApplication::translate("misc", units[0].source, units[0].comment);
   else
-    ret = QString::number(val, 'f', 1) + " " + tr(units[i].source, units[i].comment);
+    ret = QString::number(val, 'f', 1) + " " + QCoreApplication::translate("misc", units[i].source, units[i].comment);
   if (is_speed)
-    ret += tr("/s", "per second");
+    ret += QCoreApplication::translate("misc", "/s", "per second");
   return ret;
 }
 
@@ -379,21 +379,21 @@ QString misc::userFriendlyDuration(qlonglong seconds) {
     return "0";
   }
   if (seconds < 60) {
-    return tr("< 1m", "< 1 minute");
+    return QCoreApplication::translate("misc", "< 1m", "< 1 minute");
   }
   int minutes = seconds / 60;
   if (minutes < 60) {
-    return tr("%1m","e.g: 10minutes").arg(QString::number(minutes));
+    return QCoreApplication::translate("misc", "%1m","e.g: 10minutes").arg(QString::number(minutes));
   }
   int hours = minutes / 60;
   minutes = minutes - hours*60;
   if (hours < 24) {
-    return tr("%1h %2m", "e.g: 3hours 5minutes").arg(QString::number(hours)).arg(QString::number(minutes));
+    return QCoreApplication::translate("misc", "%1h %2m", "e.g: 3hours 5minutes").arg(QString::number(hours)).arg(QString::number(minutes));
   }
   int days = hours / 24;
   hours = hours - days * 24;
   if (days < 100) {
-    return tr("%1d %2h", "e.g: 2days 10hours").arg(QString::number(days)).arg(QString::number(hours));
+    return QCoreApplication::translate("misc", "%1d %2h", "e.g: 2days 10hours").arg(QString::number(days)).arg(QString::number(hours));
   }
   return QString::fromUtf8("∞");
 }
diff --git a/src/misc.h b/src/misc.h
index 6d9883574..883aef26f 100644
--- a/src/misc.h
+++ b/src/misc.h
@@ -43,7 +43,6 @@
 #include <QFile>
 #include <QDir>
 #include <QUrl>
-#include <QCoreApplication>
 #ifndef DISABLE_GUI
 #include <QIcon>
 #endif
@@ -51,79 +50,73 @@
 const qlonglong MAX_ETA = 8640000;
 
 /*  Miscellaneaous functions that can be useful */
-class misc
+namespace misc
 {
-  Q_DECLARE_TR_FUNCTIONS(misc)
-
-private:
-  misc(); // Forbidden
-
-public:
-  static inline QString toQString(const std::string &str) {
+  inline QString toQString(const std::string &str) {
     return QString::fromLocal8Bit(str.c_str());
   }
 
-  static inline QString toQString(const char* str) {
+  inline QString toQString(const char* str) {
     return QString::fromLocal8Bit(str);
   }
 
-  static inline QString toQStringU(const std::string &str) {
+  inline QString toQStringU(const std::string &str) {
     return QString::fromUtf8(str.c_str());
   }
 
-  static inline QString toQStringU(const char* str) {
+  inline QString toQStringU(const char* str) {
     return QString::fromUtf8(str);
   }
 
-  static inline QString toQString(const libtorrent::sha1_hash &hash) {
+  inline QString toQString(const libtorrent::sha1_hash &hash) {
     char out[41];
     to_hex((char const*)&hash[0], libtorrent::sha1_hash::size, out);
     return QString(out);
   }
 
 #ifndef DISABLE_GUI
-  static void shutdownComputer(bool sleep=false);
+  void shutdownComputer(bool sleep=false);
 #endif
 
-  static QString parseHtmlLinks(const QString &raw_text);
+  QString parseHtmlLinks(const QString &raw_text);
 
-  static bool isUrl(const QString &s);
+  bool isUrl(const QString &s);
 
 #ifndef DISABLE_GUI
   // Get screen center
-  static QPoint screenCenter(QWidget *win);
+  QPoint screenCenter(QWidget *win);
 #endif
-  static int pythonVersion();
+  int pythonVersion();
   // return best userfriendly storage unit (B, KiB, MiB, GiB, TiB)
   // use Binary prefix standards from IEC 60027-2
   // see http://en.wikipedia.org/wiki/Kilobyte
   // value must be given in bytes
-  static QString friendlyUnit(qreal val, bool is_speed = false);
-  static bool isPreviewable(const QString& extension);
-  static QString magnetUriToName(const QString& magnet_uri);
-  static QString magnetUriToHash(const QString& magnet_uri);
-  static QList<QUrl> magnetUriToTrackers(const QString& magnet_uri);
-  static QString bcLinkToMagnet(QString bc_link);
+  QString friendlyUnit(qreal val, bool is_speed = false);
+  bool isPreviewable(const QString& extension);
+  QString magnetUriToName(const QString& magnet_uri);
+  QString magnetUriToHash(const QString& magnet_uri);
+  QList<QUrl> magnetUriToTrackers(const QString& magnet_uri);
+  QString bcLinkToMagnet(QString bc_link);
   // Take a number of seconds and return an user-friendly
   // time duration like "1d 2h 10m".
-  static QString userFriendlyDuration(qlonglong seconds);
-  static QString getUserIDString();
+  QString userFriendlyDuration(qlonglong seconds);
+  QString getUserIDString();
 
   // Convert functions
-  static QStringList toStringList(const QList<bool> &l);
-  static QList<int> intListfromStringList(const QStringList &l);
-  static QList<bool> boolListfromStringList(const QStringList &l);
+  QStringList toStringList(const QList<bool> &l);
+  QList<int> intListfromStringList(const QStringList &l);
+  QList<bool> boolListfromStringList(const QStringList &l);
 
 #if LIBTORRENT_VERSION_NUM < 001600
-  static QString toQString(const boost::posix_time::ptime& boostDate);
+  QString toQString(const boost::posix_time::ptime& boostDate);
 #else
-  static QString toQString(time_t t);
+  QString toQString(time_t t);
 #endif
 
 #ifndef DISABLE_GUI
-  static bool naturalSort(QString left, QString right, bool& result);
+  bool naturalSort(QString left, QString right, bool& result);
 #endif
-};
+}
 
 //  Trick to get a portable sleep() function
 class SleeperThread : public QThread {