diff --git a/y2023/vision/calibrate_extrinsics.cc b/y2023/vision/calibrate_extrinsics.cc
index 7e650a3..91bdefd 100644
--- a/y2023/vision/calibrate_extrinsics.cc
+++ b/y2023/vision/calibrate_extrinsics.cc
@@ -1,7 +1,8 @@
 #include "Eigen/Dense"
 #include "Eigen/Geometry"
-
 #include "absl/strings/str_format.h"
+#include <opencv2/core/eigen.hpp>
+
 #include "aos/events/logging/log_reader.h"
 #include "aos/events/logging/log_writer.h"
 #include "aos/init.h"
@@ -16,8 +17,6 @@
 #include "y2023/constants/constants_generated.h"
 #include "y2023/vision/vision_util.h"
 
-#include <opencv2/core/eigen.hpp>
-
 DEFINE_string(pi, "pi-7971-2", "Pi name to calibrate.");
 DEFINE_bool(plot, false, "Whether to plot the resulting data.");
 DEFINE_string(target_type, "charuco_diamond",