diff --git a/openbsc/src/osmo-bsc_nat/Makefile.am b/openbsc/src/osmo-bsc_nat/Makefile.am
index 6027f27..141b892 100644
--- a/openbsc/src/osmo-bsc_nat/Makefile.am
+++ b/openbsc/src/osmo-bsc_nat/Makefile.am
@@ -42,6 +42,7 @@
 osmo_bsc_nat_LDADD = \
 	$(top_builddir)/src/libmgcp/libmgcp.a \
 	$(top_builddir)/src/libbsc/libbsc.a \
+	$(top_builddir)/src/libcommon-cs/libcommon-cs.a \
 	$(top_builddir)/src/libtrau/libtrau.a \
 	$(top_builddir)/src/libcommon/libcommon.a \
 	$(top_builddir)/src/libfilter/libfilter.a \