diff --git a/api/api_proto/projects.proto b/api/api_proto/projects.proto
index bcd1167..4171913 100644
--- a/api/api_proto/projects.proto
+++ b/api/api_proto/projects.proto
@@ -8,6 +8,8 @@
 
 package monorail;
 
+option go_package = "infra/monorailv2/api/api_proto;monorail";
+
 import "api/api_proto/common.proto";
 import "api/api_proto/project_objects.proto";