diff --git a/native/Avalonia.Native/src/OSX/WindowBaseImpl.h b/native/Avalonia.Native/src/OSX/WindowBaseImpl.h
index 1c82e91697..874a875330 100644
--- a/native/Avalonia.Native/src/OSX/WindowBaseImpl.h
+++ b/native/Avalonia.Native/src/OSX/WindowBaseImpl.h
@@ -106,7 +106,6 @@ protected:
     AvnPoint lastPositionSet;
     bool _shown;
     std::list<WindowBaseImpl*> _children;
-    bool _isModal;
 
 public:
     WindowBaseImpl* Parent = nullptr;
diff --git a/native/Avalonia.Native/src/OSX/WindowBaseImpl.mm b/native/Avalonia.Native/src/OSX/WindowBaseImpl.mm
index 2136428db4..c47cf5e406 100644
--- a/native/Avalonia.Native/src/OSX/WindowBaseImpl.mm
+++ b/native/Avalonia.Native/src/OSX/WindowBaseImpl.mm
@@ -498,9 +498,7 @@ HRESULT WindowBaseImpl::SetParent(IAvnWindowBase *parent) {
         auto cparent = dynamic_cast<WindowImpl *>(parent);
         
         Parent = cparent;
-
-        _isModal = Parent != nullptr;
-        
+       
         if(Parent != nullptr && Window != nullptr){
             // If one tries to show a child window with a minimized parent window, then the parent window will be
             // restored but macOS isn't kind enough to *tell* us that, so the window will be left in a non-interactive
diff --git a/native/Avalonia.Native/src/OSX/WindowImpl.h b/native/Avalonia.Native/src/OSX/WindowImpl.h
index b931e933db..fce7273f30 100644
--- a/native/Avalonia.Native/src/OSX/WindowImpl.h
+++ b/native/Avalonia.Native/src/OSX/WindowImpl.h
@@ -101,6 +101,7 @@ private:
     bool _transitioningWindowState;
     bool _isClientAreaExtended;
     AvnExtendClientAreaChromeHints _extendClientHints;
+    bool _isModal;
 };
 
 #endif //AVALONIA_NATIVE_OSX_WINDOWIMPL_H