diff --git a/src/Plugins/Qt/QTMApplication.hpp b/src/Plugins/Qt/QTMApplication.hpp
index c28c73d6b5..5f3f9fce74 100644
--- a/src/Plugins/Qt/QTMApplication.hpp
+++ b/src/Plugins/Qt/QTMApplication.hpp
@@ -120,6 +120,7 @@ class QTMApplication: public QApplication {
     QApplication (argc, argv) {
       init_palette (this);
       init_style_sheet (this);
+      QGuiApplication::setHighDpiScaleFactorRoundingPolicy(Qt::HighDpiScaleFactorRoundingPolicy::RoundPreferFloor);
     }
 
   void set_window_icon (string icon_path) {