diff --git a/src/app/application.cpp b/src/app/application.cpp
index 8300ceaa7..cde4ada94 100644
--- a/src/app/application.cpp
+++ b/src/app/application.cpp
@@ -216,7 +216,9 @@ void Application::setMemoryWorkingSetLimit(const int size)
         return;
 
     m_storeMemoryWorkingSetLimit = size;
+#ifdef QBT_USES_LIBTORRENT2
     applyMemoryWorkingSetLimit();
+#endif
 }
 
 bool Application::isFileLoggerEnabled() const
@@ -595,7 +597,9 @@ void Application::processParams(const QStringList &params)
 
 int Application::exec(const QStringList &params)
 {
+#ifdef QBT_USES_LIBTORRENT2
     applyMemoryWorkingSetLimit();
+#endif
 
     Net::ProxyConfigurationManager::initInstance();
     Net::DownloadManager::initInstance();
@@ -766,6 +770,7 @@ void Application::shutdownCleanup(QSessionManager &manager)
 }
 #endif
 
+#ifdef QBT_USES_LIBTORRENT2
 void Application::applyMemoryWorkingSetLimit()
 {
     const size_t MiB = 1024 * 1024;
@@ -803,6 +808,7 @@ void Application::applyMemoryWorkingSetLimit()
     }
 #endif
 }
+#endif
 
 void Application::cleanup()
 {
diff --git a/src/app/application.h b/src/app/application.h
index c918145f8..740445c67 100644
--- a/src/app/application.h
+++ b/src/app/application.h
@@ -136,7 +136,9 @@ private:
     void processParams(const QStringList &params);
     void runExternalProgram(const BitTorrent::Torrent *torrent) const;
     void sendNotificationEmail(const BitTorrent::Torrent *torrent);
+#ifdef QBT_USES_LIBTORRENT2
     void applyMemoryWorkingSetLimit();
+#endif
 
 #ifndef DISABLE_GUI
 #ifdef Q_OS_MACOS
diff --git a/src/gui/advancedsettings.cpp b/src/gui/advancedsettings.cpp
index 3d4b8d40d..64cfd1009 100644
--- a/src/gui/advancedsettings.cpp
+++ b/src/gui/advancedsettings.cpp
@@ -62,7 +62,9 @@ namespace
         // qBittorrent section
         QBITTORRENT_HEADER,
         RESUME_DATA_STORAGE,
+#ifdef QBT_USES_LIBTORRENT2
         MEMORY_WORKING_SET_LIMIT,
+#endif
 #if defined(Q_OS_WIN)
         OS_MEMORY_PRIORITY,
 #endif
@@ -178,8 +180,10 @@ void AdvancedSettings::saveAdvancedSettings() const
     BitTorrent::Session *const session = BitTorrent::Session::instance();
 
     session->setResumeDataStorageType(m_comboBoxResumeDataStorage.currentData().value<BitTorrent::ResumeDataStorageType>());
+#ifdef QBT_USES_LIBTORRENT2
     // Physical memory (RAM) usage limit
     app()->setMemoryWorkingSetLimit(m_spinBoxMemoryWorkingSetLimit.value());
+#endif
 #if defined(Q_OS_WIN)
     session->setOSMemoryPriority(m_comboBoxOSMemoryPriority.currentData().value<BitTorrent::OSMemoryPriority>());
 #endif
@@ -407,6 +411,7 @@ void AdvancedSettings::loadAdvancedSettings()
     m_comboBoxResumeDataStorage.setCurrentIndex(m_comboBoxResumeDataStorage.findData(QVariant::fromValue(session->resumeDataStorageType())));
     addRow(RESUME_DATA_STORAGE, tr("Resume data storage type (requires restart)"), &m_comboBoxResumeDataStorage);
 
+#ifdef QBT_USES_LIBTORRENT2
     // Physical memory (RAM) usage limit
     m_spinBoxMemoryWorkingSetLimit.setMinimum(1);
     m_spinBoxMemoryWorkingSetLimit.setMaximum(std::numeric_limits<int>::max());
@@ -415,6 +420,7 @@ void AdvancedSettings::loadAdvancedSettings()
     m_spinBoxMemoryWorkingSetLimit.setValue(app()->memoryWorkingSetLimit());
     addRow(MEMORY_WORKING_SET_LIMIT, (tr("Physical memory (RAM) usage limit") + u' ' + makeLink(u"https://wikipedia.org/wiki/Working_set", u"(?)"))
         , &m_spinBoxMemoryWorkingSetLimit);
+#endif
 #if defined(Q_OS_WIN)
     m_comboBoxOSMemoryPriority.addItem(tr("Normal"), QVariant::fromValue(BitTorrent::OSMemoryPriority::Normal));
     m_comboBoxOSMemoryPriority.addItem(tr("Below normal"), QVariant::fromValue(BitTorrent::OSMemoryPriority::BelowNormal));
diff --git a/src/gui/advancedsettings.h b/src/gui/advancedsettings.h
index 44c7a789d..feb0ebc92 100644
--- a/src/gui/advancedsettings.h
+++ b/src/gui/advancedsettings.h
@@ -61,7 +61,7 @@ private:
     void loadAdvancedSettings();
     template <typename T> void addRow(int row, const QString &text, T *widget);
 
-    QSpinBox m_spinBoxMemoryWorkingSetLimit, m_spinBoxAsyncIOThreads, m_spinBoxFilePoolSize, m_spinBoxCheckingMemUsage, m_spinBoxDiskQueueSize,
+    QSpinBox m_spinBoxAsyncIOThreads, m_spinBoxFilePoolSize, m_spinBoxCheckingMemUsage, m_spinBoxDiskQueueSize,
              m_spinBoxSaveResumeDataInterval, m_spinBoxOutgoingPortsMin, m_spinBoxOutgoingPortsMax, m_spinBoxUPnPLeaseDuration, m_spinBoxPeerToS,
              m_spinBoxListRefresh, m_spinBoxTrackerPort, m_spinBoxSendBufferWatermark, m_spinBoxSendBufferLowWatermark,
              m_spinBoxSendBufferWatermarkFactor, m_spinBoxConnectionSpeed, m_spinBoxSocketBacklogSize, m_spinBoxMaxConcurrentHTTPAnnounces, m_spinBoxStopTrackerTimeout,
@@ -80,7 +80,7 @@ private:
     QCheckBox m_checkBoxCoalesceRW;
 #else
     QComboBox m_comboBoxDiskIOType;
-    QSpinBox m_spinBoxHashingThreads;
+    QSpinBox m_spinBoxMemoryWorkingSetLimit, m_spinBoxHashingThreads;
 #endif
 
     // OS dependent settings
diff --git a/src/webui/www/private/views/preferences.html b/src/webui/www/private/views/preferences.html
index 5ee3fca8c..9fb72df5b 100644
--- a/src/webui/www/private/views/preferences.html
+++ b/src/webui/www/private/views/preferences.html
@@ -913,7 +913,7 @@
         <table>
             <tr>
                 <td>
-                    <label for="memoryWorkingSetLimit">QBT_TR(Physical memory (RAM) usage limit:)QBT_TR[CONTEXT=OptionsDialog]&nbsp;<a href="https://wikipedia.org/wiki/Working_set" target="_blank">(?)</a></label>
+                    <label for="memoryWorkingSetLimit">QBT_TR(Physical memory (RAM) usage limit (applied if libtorrent >= 2.0):)QBT_TR[CONTEXT=OptionsDialog]&nbsp;<a href="https://wikipedia.org/wiki/Working_set" target="_blank">(?)</a></label>
                 </td>
                 <td>
                     <input type="text" id="memoryWorkingSetLimit" style="width: 15em;" title="QBT_TR(This option is less effective on Linux)QBT_TR[CONTEXT=OptionsDialog]">&nbsp;&nbsp;QBT_TR(MiB)QBT_TR[CONTEXT=OptionsDialog]