--- a/ui/server/objs.mk	Mon Dec 08 18:11:54 2025 +0100
+++ b/ui/server/objs.mk	Wed Dec 10 19:04:46 2025 +0100
@@ -31,6 +31,7 @@
 
 SERVEROBJ = toolkit.o
 SERVEROBJ += widget.o
+SERVEROBJ += window.o
 SERVEROBJ += image.o
 
 TOOLKITOBJS += $(SERVEROBJ:%=$(SERVER_OBJPRE)%)