diff --git a/src/libslic3r/Model.cpp b/src/libslic3r/Model.cpp
index 16cc75225a..39f6ef98eb 100644
--- a/src/libslic3r/Model.cpp
+++ b/src/libslic3r/Model.cpp
@@ -1572,8 +1572,12 @@ void ModelObject::reset_instance_transformation(ModelObject* object, size_t src_
     for (size_t i = 0; i < object->instances.size(); ++i) {
         auto& obj_instance = object->instances[i];
         const double rot_z = obj_instance->get_rotation().z();
-        
-        obj_instance->set_transformation(Transformation(obj_instance->get_transformation().get_matrix_no_scaling_factor()));
+
+        Transformation inst_trafo = Transformation(obj_instance->get_transformation().get_matrix_no_scaling_factor());
+        if (obj_instance->is_left_handed())
+            inst_trafo = inst_trafo * Transformation(scale_transform(Vec3d(-1, 1, 1)));
+
+        obj_instance->set_transformation(inst_trafo);
 
         Vec3d rotation = Vec3d::Zero();
         if (!flip && !place_on_cut) {