diff --git a/src/u_dockoptions.pas b/src/u_dockoptions.pas
index 8dbb4e77..4f3045fe 100644
--- a/src/u_dockoptions.pas
+++ b/src/u_dockoptions.pas
@@ -50,6 +50,7 @@ begin
   HideHeaderCaptionForFloatingCheckBox.OnChange := @doChanged;
   FlattenHeadersCheckBox.OnChange := @doChanged;
   FilledHeadersCheckBox.OnChange := @doChanged;
+  FloatingWindowsOnTop.Visible := false;
   //
   HeaderStyleComboBox.OnChange := @doChanged;
   //