diff --git a/src/FluFrameless.cpp b/src/FluFrameless.cpp
index 2bf490f6..5b66dc21 100644
--- a/src/FluFrameless.cpp
+++ b/src/FluFrameless.cpp
@@ -295,8 +295,8 @@ FluFrameless::~FluFrameless() = default;
 }
 
 void FluFrameless::componentComplete() {
-    HWND hwnd = reinterpret_cast<HWND>(window()->winId());
 #ifdef Q_OS_WIN
+    HWND hwnd = reinterpret_cast<HWND>(window()->winId());
     if (isWin11OrGreater()) {
         availableEffects({"mica", "mica-alt", "acrylic", "dwm-blur", "normal"});
     } else if (isWin7Only()) {