diff --git a/tests/bsc-nat/Makefile.am b/tests/bsc-nat/Makefile.am
index 40be3a3..74838a9 100644
--- a/tests/bsc-nat/Makefile.am
+++ b/tests/bsc-nat/Makefile.am
@@ -12,6 +12,7 @@
 	$(LIBOSMOSCCP_CFLAGS) \
 	$(LIBOSMOABIS_CFLAGS) \
 	$(LIBOSMONETIF_CFLAGS) \
+	$(LIBOSMOLEGACYMGCP_CFLAGS) \
 	$(COVERAGE_CFLAGS) \
 	$(NULL)
 
@@ -45,7 +46,6 @@
 	$(top_builddir)/src/libfilter/libfilter.a \
 	$(top_builddir)/src/libbsc/libbsc.a \
 	$(top_builddir)/src/libcommon-cs/libcommon-cs.a \
-	$(top_builddir)/src/libmgcp/libmgcp.a \
 	$(top_builddir)/src/libtrau/libtrau.a \
 	$(top_builddir)/src/libcommon/libcommon.a \
 	$(LIBOSMOCORE_LIBS) \
@@ -55,5 +55,7 @@
 	$(LIBOSMOABIS_LIBS) \
 	$(LIBOSMONETIF_LIBS) \
 	$(LIBOSMOCTRL_LIBS) \
+	$(LIBOSMOLEGACYMGCP_LIBS) \
+	$(LIBRARY_GSM) \
 	-lrt \
 	$(NULL)