diff --git a/new/ui.idl b/new/ui.idl
index 4f54b9fa..52be2c80 100644
--- a/new/ui.idl
+++ b/new/ui.idl
@@ -72,7 +72,6 @@ interface OSContainer {
 func NewOSContainer(osParent uintptr_t) *OSContainer;
 
 interface Window {
-	field Internal *void;
 	func Destroy(void);
 	func Handle(void) uintptr_t;
 	func Title(void) *char;
diff --git a/new/unix/window.c b/new/unix/window_old.c
similarity index 100%
rename from new/unix/window.c
rename to new/unix/window_old.c