Get user agent right
diff --git a/build.yaml b/build.yaml
index ee5ffed..c4aed3d 100644
--- a/build.yaml
+++ b/build.yaml
@@ -752,6 +752,7 @@
   - src/cpp/common/core_codegen.cc
   - src/cpp/common/resource_quota_cc.cc
   - src/cpp/common/rpc_method.cc
+  - src/cpp/common/version_cc.cc
   - src/cpp/server/async_generic_service.cc
   - src/cpp/server/create_default_thread_pool.cc
   - src/cpp/server/dynamic_thread_pool.cc