diff --git a/linphone-desktop/src/app/App.cpp b/linphone-desktop/src/app/App.cpp
index 289fe6bf5..4c0894a43 100644
--- a/linphone-desktop/src/app/App.cpp
+++ b/linphone-desktop/src/app/App.cpp
@@ -206,9 +206,9 @@ void App::parseArgs () {
   mParser.addVersionOption();
   mParser.addOptions({
     { "config", tr("commandLineOptionConfig"), tr("commandLineOptionConfigArg") },
-    #ifndef __APPLE__
+    #ifndef Q_OS_MACOS
       { "iconified", tr("commandLineOptionIconified") },
-    #endif // ifndef __APPLE__
+    #endif // ifndef Q_OS_MACOS
     { "self-test", tr("commandLineOptionSelfTest") },
     { { "V", "verbose" }, tr("commandLineOptionVerbose") },
     { { "c", "cmd" }, tr("commandLineOptionCmd"), tr("commandLineOptionCmdArg") }
diff --git a/linphone-desktop/src/main.cpp b/linphone-desktop/src/main.cpp
index 102352822..6aaff4ab8 100644
--- a/linphone-desktop/src/main.cpp
+++ b/linphone-desktop/src/main.cpp
@@ -22,6 +22,7 @@
 
 #include <QDirIterator>
 #include <QFontDatabase>
+#include <QScreen>
 
 #include "app/App.hpp"
 
@@ -40,11 +41,11 @@ int main (int argc, char *argv[]) {
   // ---------------------------------------------------------------------------
 
   // Options to get a nice video render.
-  #ifdef _WIN32
+  #ifdef Q_OS_WIN
     QCoreApplication::setAttribute(Qt::AA_UseOpenGLES, true);
   #else
     QCoreApplication::setAttribute(Qt::AA_UseDesktopOpenGL, true);
-  #endif // ifdef _WIN32
+  #endif // ifdef Q_OS_WIN
   QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts, true);
 
   {
@@ -92,8 +93,16 @@ int main (int argc, char *argv[]) {
     }
   }
 
-  app.setFont(QFont(DEFAULT_FONT));
-  qInfo() << QStringLiteral("Main font:") << app.font();
+  {
+    QFont font(DEFAULT_FONT);
+
+    #ifdef Q_OS_MACOS
+      // 72 dpi on MacOs...
+      font.setPointSizeF(font.pointSize() * 96.0 / 72.0);
+    #endif // ifdef Q_OS_MACOS
+
+    app.setFont(QFont(DEFAULT_FONT));
+  }
 
   // ---------------------------------------------------------------------------
   // Init and run!