diff --git a/OpenRGB.pro b/OpenRGB.pro
index 9807859a..5700d308 100644
--- a/OpenRGB.pro
+++ b/OpenRGB.pro
@@ -21,8 +21,6 @@ CONFIG +=   c++17
 
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 
-greaterThan(QT_MAJOR_VERSION, 5): DEFINES += _QT6
-
 #-----------------------------------------------------------------------------------------------#
 # Application Configuration                                                                     #
 #-----------------------------------------------------------------------------------------------#
diff --git a/qt/OpenRGBSupportedDevicesPage/OpenRGBSupportedDevicesPage.cpp b/qt/OpenRGBSupportedDevicesPage/OpenRGBSupportedDevicesPage.cpp
index 62dc01ae..69eb440f 100644
--- a/qt/OpenRGBSupportedDevicesPage/OpenRGBSupportedDevicesPage.cpp
+++ b/qt/OpenRGBSupportedDevicesPage/OpenRGBSupportedDevicesPage.cpp
@@ -70,7 +70,7 @@ void OpenRGBSupportedDevicesPage::on_GetHardwareIDsButton_clicked()
 
 void OpenRGBSupportedDevicesPage::on_Filter_textChanged(const QString &arg1)
 {
-#ifdef _QT6
+#if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
     detectorSortModel->setFilterRegularExpression(QRegularExpression(arg1 , QRegularExpression::CaseInsensitiveOption));
 #else
     detectorSortModel->setFilterRegExp(QRegExp(arg1, Qt::CaseInsensitive));