diff --git a/native/Avalonia.Native/src/OSX/window.mm b/native/Avalonia.Native/src/OSX/window.mm
index e045b7164b..efdc8bab45 100644
--- a/native/Avalonia.Native/src/OSX/window.mm
+++ b/native/Avalonia.Native/src/OSX/window.mm
@@ -1428,7 +1428,10 @@ NSArray* AllLoopModes = [NSArray arrayWithObjects: NSDefaultRunLoopMode, NSEvent
 
 - (void)windowDidResize:(NSNotification *)notification
 {
-    _parent->OnResized();
+    if(_parent != nullptr)
+    {
+        _parent->OnResized();
+    }
 }
 
 - (BOOL)windowShouldZoom:(NSWindow *)window toFrame:(NSRect)newFrame