diff --git a/src/Makefile.am b/src/Makefile.am
index 7fd7049..fbbbfdc 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,7 +1,7 @@
 INCLUDES = $(all_includes) -I$(top_srcdir)/include
 AM_CFLAGS=-Wall
 
-sbin_PROGRAMS = bsc_hack bs11_config ipaccess-find ipaccess-config
+sbin_PROGRAMS = bsc_hack bs11_config ipaccess-find ipaccess-config isdnsync
 noinst_LIBRARIES = libbsc.a libvty.a
 noinst_HEADERS = vty/cardshell.h
 
@@ -23,3 +23,5 @@
 
 ipaccess_config_SOURCES = ipaccess-config.c
 ipaccess_config_LDADD = libbsc.a libvty.a -ldl -ldbi $(LIBCRYPT)
+
+isdnsync_SOURCES = isdnsync.c