diff --git a/headers/os/interface/Window.h b/headers/os/interface/Window.h
index 475ac23109..32aa0a7047 100644
--- a/headers/os/interface/Window.h
+++ b/headers/os/interface/Window.h
@@ -132,7 +132,7 @@ class BView;
 
 struct message;
 struct _cmd_key_;
-struct _view_attr_;
+class ViewAttr;
 
 // BWindow class ---------------------------------------------------------------
 class BWindow : public BLooper {