diff --git a/examples/daemon/light/light.cc b/examples/daemon/light/light.cc
index a78231f..4cbf9b4 100644
--- a/examples/daemon/light/light.cc
+++ b/examples/daemon/light/light.cc
@@ -304,7 +304,7 @@
 
 int main(int argc, char** argv) {
   Daemon::Options opts;
-  opts.model_id_ = "AIAAA";
+  opts.model_id = "AIAAA";
   if (!opts.Parse(argc, argv)) {
     Daemon::Options::ShowUsage(argv[0]);
     return 1;