--- a/dav/Makefile	Sat Feb 27 17:23:36 2016 +0100
+++ b/dav/Makefile	Sat Feb 27 19:39:55 2016 +0100
@@ -32,6 +32,7 @@
 DAV_SRC += config.c
 DAV_SRC += optparser.c
 DAV_SRC += error.c
+DAV_SRC += assistant.c
 
 SYNC_SRC = sync.c
 SYNC_SRC += config.c
@@ -39,6 +40,7 @@
 SYNC_SRC += sopt.c
 SYNC_SRC += db.c
 SYNC_SRC += error.c
+SYNC_SRC += assistant.c
 
 
 DAV_OBJ = $(DAV_SRC:%.c=../build/tool/%$(OBJ_EXT))