diff --git a/lib/dns/Makefile.in b/lib/dns/Makefile.in
index eb31219002..707ada383b 100644
--- a/lib/dns/Makefile.in
+++ b/lib/dns/Makefile.in
@@ -13,7 +13,7 @@ CDEFINES =
 CWARNINGS =
 
 OBJS =		name.o db.o rbt.o rbtdb.o rdata.o rdatalist.o rdataset.o \
-		result.o version.o rdataslab.o master.o
+		result.o version.o rdataslab.o master.o callbacks.o
 
 SUBDIRS =	includexo
 TARGETS =	include/dns/enumtype.h include/dns/enumclass.h timestamp