--- a/ui/gtk/objs.mk	Sun Sep 22 18:16:14 2024 +0200
+++ b/ui/gtk/objs.mk	Sun Sep 22 19:47:26 2024 +0200
@@ -44,6 +44,7 @@
 GTKOBJ += range.o
 GTKOBJ += entry.o
 GTKOBJ += dnd.o
+GTKOBJ += headerbar.o
 
 TOOLKITOBJS += $(GTKOBJ:%=$(GTK_OBJPRE)%)
 TOOLKITSOURCE += $(GTKOBJ:%.o=gtk/%.c)