diff --git a/y2024/wpilib_interface.cc b/y2024/wpilib_interface.cc
index bce5451..1a204a0 100644
--- a/y2024/wpilib_interface.cc
+++ b/y2024/wpilib_interface.cc
@@ -504,9 +504,7 @@
                   drivetrain_can_position_sender.MakeStaticBuilder();
 
           auto drivetrain_falcon_vector =
-              drivetrain_can_builder->add_talonfxs();
-
-          CHECK(drivetrain_falcon_vector->reserve(drivetrain_talonfxs.size()));
+              CHECK_NOTNULL(drivetrain_can_builder->add_talonfxs());
 
           for (auto talonfx : drivetrain_talonfxs) {
             talonfx->SerializePosition(