diff --git a/src/libosmo-mgcp/Makefile.am b/src/libosmo-mgcp/Makefile.am
index 77d0cdf..91b2bf6 100644
--- a/src/libosmo-mgcp/Makefile.am
+++ b/src/libosmo-mgcp/Makefile.am
@@ -10,6 +10,8 @@
 	$(LIBOSMOGSM_CFLAGS) \
 	$(LIBOSMOVTY_CFLAGS) \
 	$(LIBOSMONETIF_CFLAGS) \
+	$(LIBOSMOABIS_CFLAGS) \
+	$(LIBOSMOTRAU_CFLAGS) \
 	$(COVERAGE_CFLAGS) \
 	$(NULL)
 
@@ -18,6 +20,8 @@
 	$(LIBOSMOGSM_LIBS) \
 	$(LIBOSMOVTY_LIBS) \
 	$(LIBOSMONETIF_LIBS) \
+	$(LIBOSMOABIS_LIBS) \
+	$(LIBOSMOTRAU_LIBS) \
 	$(COVERAGE_LDFLAGS) \
 	$(NULL)
 
@@ -43,4 +47,5 @@
 	mgcp_trunk.c \
 	mgcp_ctrl.c \
 	mgcp_ratectr.c \
+	mgcp_e1.c \
 	$(NULL)