diff --git a/protocols/grpc/BUCK b/protocols/grpc/BUCK
index 57ab1a0..562d6f6 100644
--- a/protocols/grpc/BUCK
+++ b/protocols/grpc/BUCK
@@ -31,7 +31,7 @@
 onos_app (
     app_name = 'org.onosproject.protocols.grpc',
     title = 'gRPC Protocol Subsystem',
-    category = 'Protocols',
+    category = 'Protocol',
     url = 'http://onosproject.org',
     description = 'ONOS gRPC protocol subsystem',
     included_bundles = BUNDLES,