diff --git a/QtScrcpy/ui/dialog.cpp b/QtScrcpy/ui/dialog.cpp
index a9da8bb..610e244 100644
--- a/QtScrcpy/ui/dialog.cpp
+++ b/QtScrcpy/ui/dialog.cpp
@@ -141,7 +141,9 @@ void Dialog::initUI()
 
     setWindowTitle(Config::getInstance().getTitle());
 
+#ifdef Q_OS_WIN32
     WinUtils::setDarkBorderToWindow((HWND)this->winId(), true);
+#endif
 
     ui->bitRateEdit->setValidator(new QIntValidator(1, 99999, this));
 
diff --git a/QtScrcpy/util/winutils.cpp b/QtScrcpy/util/winutils.cpp
index 234bc83..53e450c 100644
--- a/QtScrcpy/util/winutils.cpp
+++ b/QtScrcpy/util/winutils.cpp
@@ -11,6 +11,10 @@ enum : WORD
     DwmwaUseImmersiveDarkModeBefore20h1 = 19
 };
 
+WinUtils::WinUtils(){};
+
+WinUtils::~WinUtils(){};
+
 // Set dark border to window
 // Reference: qt/qtbase.git/tree/src/plugins/platforms/windows/qwindowswindow.cpp
 bool WinUtils::setDarkBorderToWindow(const HWND &hwnd, const bool &d)