diff --git a/sources/main.cpp b/sources/main.cpp
index 66a6fa6d8..a72c1f9d2 100644
--- a/sources/main.cpp
+++ b/sources/main.cpp
@@ -38,12 +38,7 @@ int main(int argc, char **argv)
 	QCoreApplication::setApplicationName("QElectroTech");
 	//Creation and execution of the application
 	//HighDPI
-#if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
-#pragma message("@TODO remove code for QT 5.6 or later")
 	QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
-#else
-	qputenv("QT_DEVICE_PIXEL_RATIO", QByteArray("auto"));
-#endif
 	SingleApplication app(argc, argv, true);
 #ifdef Q_OS_MACOS
 	//Handle the opening of QET when user double click on a .qet .elmt .tbt file