diff --git a/cpp/kiss_icp/core/Preprocessing.cpp b/cpp/kiss_icp/core/Preprocessing.cpp
index 482b8938..d626de45 100644
--- a/cpp/kiss_icp/core/Preprocessing.cpp
+++ b/cpp/kiss_icp/core/Preprocessing.cpp
@@ -29,8 +29,6 @@
 #include <algorithm>
 #include <vector>
 
-#include "VoxelUtils.hpp"
-
 namespace kiss_icp {
 std::vector<Eigen::Vector3d> Preprocess(const std::vector<Eigen::Vector3d> &frame,
                                         double max_range,