[tests] Fix the tests... link again

diff --git a/tests/sms/Makefile.am b/tests/sms/Makefile.am
index 20a8894..03ae57c 100644
--- a/tests/sms/Makefile.am
+++ b/tests/sms/Makefile.am
@@ -7,6 +7,7 @@
 		$(top_srcdir)/src/gsm_subscriber.c $(top_srcdir)/src/msgb.c \
 		$(top_srcdir)/src/select.c $(top_srcdir)/src/chan_alloc.c \
 		$(top_srcdir)/src/timer.c $(top_srcdir)/src/debug.c \
-		$(top_srcdir)/src/db.c $(top_srcdir)/src/gsm_04_11.c
+		$(top_srcdir)/src/db.c $(top_srcdir)/src/gsm_04_11.c \
+		$(top_srcdir)/src/paging.c
 
 sms_test_LDADD = -ldl -ldbi