--- a/ui/gtk/objs.mk	Thu Nov 16 12:04:10 2017 +0100
+++ b/ui/gtk/objs.mk	Sun Nov 19 09:00:16 2017 +0100
@@ -44,6 +44,7 @@
 GTKOBJ += graphics.o
 GTKOBJ += range.o
 GTKOBJ += entry.o
+GTKOBJ += dnd.o
 
 TOOLKITOBJS += $(GTKOBJ:%=$(GTK_OBJPRE)%)
 TOOLKITSOURCE += $(GTKOBJ:%.o=gtk/%.c)