diff --git a/Makefile b/Makefile
index 32d9d23..f6cf50a 100644
--- a/Makefile
+++ b/Makefile
@@ -120,7 +120,7 @@
 COVERAGE_OPTS=--with-coverage --with-xunit --cover-branches --cover-html --cover-html-dir=tmp/cover \
               --cover-package=pyvoltha.adapters,pyvoltha.common
 
-utest-with-coverage: venv protos
+utest-with-coverage: venv
 	@ echo "Executing all unit tests and producing coverage results"
 	@ tox -- $(COVERAGE_OPTS)
 
@@ -128,7 +128,6 @@
 	find . -name '*.pyc' | xargs rm -f
 	find . -name 'coverage.xml' | xargs rm -f
 	find . -name 'nosetests.xml' | xargs rm -f
-	make -C pyvoltha/protos clean
 	rm -rf pyvoltha.egg-info
 	rm -rf dist
 	rm -rf .tox
diff --git a/pyvoltha/adapters/kafka/core_proxy.py b/pyvoltha/adapters/kafka/core_proxy.py
index c0f0dd4..43229c8 100644
--- a/pyvoltha/adapters/kafka/core_proxy.py
+++ b/pyvoltha/adapters/kafka/core_proxy.py
@@ -25,7 +25,7 @@
 
 from voltha_protos.common_pb2 import ID, ConnectStatus, OperStatus
 from voltha_protos.inter_container_pb2 import StrType, BoolType, IntType, Packet
-from voltha_protos.device_pb2 import Device, Portsi, Devices
+from voltha_protos.device_pb2 import Device, Ports, Devices
 from voltha_protos.voltha_pb2 import CoreInstance
 
 log = structlog.get_logger()