diff --git a/incubator/protobuf/services/nb/BUCK b/incubator/protobuf/services/nb/BUCK
index 6f582e0..1ce40c2 100644
--- a/incubator/protobuf/services/nb/BUCK
+++ b/incubator/protobuf/services/nb/BUCK
@@ -7,7 +7,8 @@
     '//lib:protobuf-java-3.2.0',
     '//lib:GRPC_1.3',
     '//incubator/grpc-dependencies:grpc-core-repkg-1.3.0',
-    '//lib:grpc-protobuf-lite-1.3.0'
+    '//lib:grpc-protobuf-lite-1.3.0',
+    '//incubator/protobuf/api:onos-grpc-api'
 ]
 
 GRPC_DEPS = [
@@ -15,7 +16,7 @@
     '//incubator/grpc-dependencies:grpc-core-repkg-1.3.0',
     '//incubator/protobuf/models:onos-incubator-protobuf-models-proto',
     '//lib:protobuf-java-3.2.0',
-    '//lib:guava'
+    '//lib:guava',
 ]
 
 BUNDLES = [