diff --git a/launcher/ui/dialogs/NewInstanceDialog.cpp b/launcher/ui/dialogs/NewInstanceDialog.cpp
index 0fb8e320d..1601708f9 100644
--- a/launcher/ui/dialogs/NewInstanceDialog.cpp
+++ b/launcher/ui/dialogs/NewInstanceDialog.cpp
@@ -132,7 +132,11 @@ NewInstanceDialog::NewInstanceDialog(const QString& initialGroup,
     if (APPLICATION->settings()->get("NewInstanceGeometry").isValid()) {
         restoreGeometry(QByteArray::fromBase64(APPLICATION->settings()->get("NewInstanceGeometry").toByteArray()));
     } else {
+#if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0)
         auto screen = parent->screen();
+#else
+        auto screen = QGuiApplication::primaryScreen();
+#endif
         auto geometry = screen->availableSize();
         resize(width(), qMin(geometry.height() - 50, 710));
     }