diff --git a/bucklets/grpc.bucklet b/bucklets/grpc.bucklet
index a9e8926c7d..34b31f2d52 100644
--- a/bucklets/grpc.bucklet
+++ b/bucklets/grpc.bucklet
@@ -90,7 +90,7 @@ def grpc_jar(
     proto_paths = [],
     srcs = [],
     src_string = '', # Useful to build proto files external to the ONOS sources, using BUCK's environment variables.
-    proto_match_patterns = [ "**/proto/**/*.proto" ],
+    proto_match_patterns = [ "src/main/proto/**/*.proto" ],
     protoc_version = DEFAULT_PROTOC_VERSION,
     plugin_version = DEFAULT_GRPC_PLUGIN_VERSION,
     include_std_lib = False,
diff --git a/protocols/p4runtime/proto/BUCK b/protocols/p4runtime/proto/BUCK
index f8623f867d..fdb25150c1 100644
--- a/protocols/p4runtime/proto/BUCK
+++ b/protocols/p4runtime/proto/BUCK
@@ -52,4 +52,4 @@ grpc_jar(
 
 project_config(
     src_target = ':onos-protocols-p4runtime-proto'
-)
\ No newline at end of file
+)