diff --git a/lcl/interfaces/qt/qtwidgets.pas b/lcl/interfaces/qt/qtwidgets.pas
index 0d0f35b76a..ac5e833282 100644
--- a/lcl/interfaces/qt/qtwidgets.pas
+++ b/lcl/interfaces/qt/qtwidgets.pas
@@ -7813,9 +7813,7 @@ begin
   {$IFDEF QtUseAccurateFrame}
   Result := not IsMDIChild and (LCLObject.Parent = nil) and
     (TCustomForm(LCLObject).BorderStyle <> bsNone) and
-    (TCustomForm(LCLObject).FormStyle <> fsSplash) and
-    (getWindowState and QtWindowMaximized = 0) and
-    (getWindowState and QtWindowFullScreen = 0);
+    (TCustomForm(LCLObject).FormStyle <> fsSplash);
   {$ENDIF}
 end;