diff --git a/src/libs/vmisc/def.cpp b/src/libs/vmisc/def.cpp
index 1b7d1e4d2..fbb47d3ca 100644
--- a/src/libs/vmisc/def.cpp
+++ b/src/libs/vmisc/def.cpp
@@ -290,7 +290,9 @@ void InitHighDpiScaling(int argc, char *argv[])
     if (IsOptionSet(argc, argv, qPrintable(QLatin1String("--") + LONG_OPTION_NO_HDPI_SCALING)))
     {
 #if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
         QCoreApplication::setAttribute(Qt::AA_DisableHighDpiScaling);
+#endif
 #else
         qputenv("QT_DEVICE_PIXEL_RATIO", QByteArray("1"));
 #endif
@@ -298,7 +300,9 @@ void InitHighDpiScaling(int argc, char *argv[])
     else
     {
 #if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
         QApplication::setAttribute(Qt::AA_EnableHighDpiScaling); // DPI support
+#endif
 #else
         qputenv("QT_AUTO_SCREEN_SCALE_FACTOR", QByteArray("1"));
 #endif
diff --git a/src/libs/vmisc/vabstractapplication.cpp b/src/libs/vmisc/vabstractapplication.cpp
index 7de3168b0..46a756c0f 100644
--- a/src/libs/vmisc/vabstractapplication.cpp
+++ b/src/libs/vmisc/vabstractapplication.cpp
@@ -123,7 +123,7 @@ VAbstractApplication::VAbstractApplication(int &argc, char **argv)
         QLoggingCategory::setFilterRules(rules);
     }
 
-#if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
+#if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0) && QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     // Enable support for HiDPI bitmap resources
     // The attribute is available since Qt 5.1, but by default disabled.
     // Because on Windows and Mac OS X we always use last version