diff --git a/openbsc/src/osmo-bsc/Makefile.am b/openbsc/src/osmo-bsc/Makefile.am
index 6248fcd..b4a2cba 100644
--- a/openbsc/src/osmo-bsc/Makefile.am
+++ b/openbsc/src/osmo-bsc/Makefile.am
@@ -9,7 +9,9 @@
 		   osmo_bsc_grace.c osmo_bsc_msc.c osmo_bsc_sccp.c \
 		   osmo_bsc_filter.c osmo_bsc_bssap.c osmo_bsc_audio.c osmo_bsc_ctrl.c
 # once again since TRAU uses CC symbol :(
-osmo_bsc_LDADD = $(top_builddir)/src/libbsc/libbsc.a \
+osmo_bsc_LDADD = \
+		 $(top_builddir)/src/libfilter/libfilter.a \
+		 $(top_builddir)/src/libbsc/libbsc.a \
 		 $(top_builddir)/src/libmsc/libmsc.a \
 		 $(top_builddir)/src/libbsc/libbsc.a \
 		 $(top_builddir)/src/libtrau/libtrau.a \