diff --git a/y2023/vision/aprilrobotics_main.cc b/y2023/vision/aprilrobotics_main.cc
index 67b853f..6870ae1 100644
--- a/y2023/vision/aprilrobotics_main.cc
+++ b/y2023/vision/aprilrobotics_main.cc
@@ -1,6 +1,7 @@
 #include "aos/events/shm_event_loop.h"
 #include "aos/init.h"
 #include "y2023/vision/aprilrobotics.h"
+#include "frc971/constants/constants_sender_lib.h"
 
 DEFINE_string(config, "aos_config.json", "Path to the config file to use.");
 
@@ -9,6 +10,8 @@
   aos::FlatbufferDetachedBuffer<aos::Configuration> config =
       aos::configuration::ReadConfig(FLAGS_config);
 
+  frc971::constants::WaitForConstants<Constants>(&config.message());
+
   aos::ShmEventLoop event_loop(&config.message());
 
   AprilRoboticsDetector detector(&event_loop, "/camera");