diff --git a/cpp/include/roiware_utils.h b/cpp/include/roiware_utils.h
index a6856a3..2601a3e 100644
--- a/cpp/include/roiware_utils.h
+++ b/cpp/include/roiware_utils.h
@@ -6,7 +6,7 @@
  */
 
 #include <ATen/core/TensorBody.h>
-#include <math.h>
+#include <cmath>
 
 inline void lidar_to_local_coords_cpu(float shift_x, float shift_y,
                                       float rot_angle, float &local_x,