diff --git a/BUILD.gn b/BUILD.gn
index d15961a4879..183f983e338 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1066,6 +1066,7 @@ config("grpc_config") {
         "include/grpcpp/impl/rpc_service_method.h",
         "include/grpcpp/impl/serialization_traits.h",
         "include/grpcpp/impl/server_builder_option.h",
+        "include/grpcpp/impl/server_builder_option_impl.h",
         "include/grpcpp/impl/server_builder_plugin.h",
         "include/grpcpp/impl/server_initializer.h",
         "include/grpcpp/impl/service_type.h",