diff --git a/include/osmocom/hlr/Makefile.am b/include/osmocom/hlr/Makefile.am
index 532fa5d..5c96ec8 100644
--- a/include/osmocom/hlr/Makefile.am
+++ b/include/osmocom/hlr/Makefile.am
@@ -10,5 +10,7 @@
 	hlr_vty_subscr.h \
 	logging.h \
 	lu_fsm.h \
+	mslookup_server.h \
 	rand.h \
+	timestamp.h \
 	$(NULL)