Add support for protobuf API definitions
diff --git a/Makefile b/Makefile
index d009f74..8a2a3a1 100644
--- a/Makefile
+++ b/Makefile
@@ -74,9 +74,15 @@
 vagrant:
 	vagrant up
 
-build: fetch utest
+build: utest build-protos
 	docker build -t cord/voltha -f Dockerfile .
 
+build-protos:
+	make -C voltha/core/protos
+
+install-protoc:
+	make -C voltha/core/protos install-protoc
+
 clean:
 	find voltha -name '*.pyc' | xargs rm -f