diff --git a/openbsc/tests/mgcp/Makefile.am b/openbsc/tests/mgcp/Makefile.am
index 8c365b4..470cdd8 100644
--- a/openbsc/tests/mgcp/Makefile.am
+++ b/openbsc/tests/mgcp/Makefile.am
@@ -11,4 +11,5 @@
 mgcp_test_LDADD = $(top_builddir)/src/libbsc/libbsc.a \
 		$(top_builddir)/src/libmgcp/libmgcp.a \
 		$(top_builddir)/src/libcommon/libcommon.a \
-		$(LIBOSMOCORE_LIBS) -lrt $(LIBOSMOSCCP_LIBS) $(LIBOSMOVTY_LIBS)
+		$(LIBOSMOCORE_LIBS) -lrt $(LIBOSMOSCCP_LIBS) $(LIBOSMOVTY_LIBS) \
+		$(LIBRARY_DL)