diff --git a/lib/main.dart b/lib/main.dart
index 1b46cae5..5b17dd6b 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -115,7 +115,10 @@ void main() async {
       title: Constants.appName,
     );
     windowManager.waitUntilReadyToShow(windowOptions, () async {
-      await windowManager.setBounds(await calcWindowPosition & Pref.windowSize);
+      final windowSize = Pref.windowSize;
+      await windowManager.setBounds(
+        await calcWindowPosition(windowSize) & windowSize,
+      );
       if (Pref.isWindowMaximized) await windowManager.maximize();
       await windowManager.show();
       await windowManager.focus();
diff --git a/lib/utils/calc_window_position.dart b/lib/utils/calc_window_position.dart
index 57e1d832..1ac9c8fc 100644
--- a/lib/utils/calc_window_position.dart
+++ b/lib/utils/calc_window_position.dart
@@ -1,9 +1,8 @@
 import 'package:PiliPlus/utils/storage_pref.dart';
 import 'package:flutter/material.dart';
 import 'package:screen_retriever/screen_retriever.dart';
-import 'package:window_manager/window_manager.dart';
 
-Future<Offset> get calcWindowPosition async {
+Future<Offset> calcWindowPosition(Size windowSize) async {
   Display primaryDisplay = await screenRetriever.getPrimaryDisplay();
   List<Display> allDisplays = await screenRetriever.getAllDisplays();
   Offset cursorScreenPoint = await screenRetriever.getCursorScreenPoint();
@@ -46,7 +45,6 @@ Future<Offset> get calcWindowPosition async {
     } catch (_) {}
   }
 
-  final windowSize = await windowManager.getSize();
   return Offset(
     visibleStartX + (visibleWidth / 2) - (windowSize.width / 2),
     visibleStartY + ((visibleHeight / 2) - (windowSize.height / 2)),