diff --git a/openbsc/src/osmo-bsc_nat/Makefile.am b/openbsc/src/osmo-bsc_nat/Makefile.am
index 03fe62b..eea720e 100644
--- a/openbsc/src/osmo-bsc_nat/Makefile.am
+++ b/openbsc/src/osmo-bsc_nat/Makefile.am
@@ -12,4 +12,5 @@
 		$(top_builddir)/src/libbsc/libbsc.a \
 		$(top_builddir)/src/libabis/libabis.a \
 		$(top_builddir)/src/libtrau/libtrau.a \
+		$(top_builddir)/src/libctrl/libctrl.a \
 		-lrt $(LIBOSMOSCCP_LIBS)