diff --git a/xs/src/libslic3r/TriangleMesh.cpp b/xs/src/libslic3r/TriangleMesh.cpp
index ff1f07153..895dba707 100644
--- a/xs/src/libslic3r/TriangleMesh.cpp
+++ b/xs/src/libslic3r/TriangleMesh.cpp
@@ -280,11 +280,13 @@ TriangleMesh::WriteOBJFile(const std::string &output_file) const {
     #endif
 }
 
-void TriangleMesh::transform(const TransformationMatrix &trafo)
+TriangleMesh TriangleMesh::transform(const TransformationMatrix &trafo)
 {
+    TriangleMesh mesh = TriangleMesh::TriangleMesh();
     std::vector<float> trafo_arr = trafo.matrix3x4f();
-    stl_transform(&this->stl, trafo_arr.data());
-    stl_invalidate_shared_vertices(&this->stl);
+    stl_transform(&this->stl, &(mesh.stl), trafo_arr.data());
+    stl_invalidate_shared_vertices(&(mesh.stl));
+    return mesh;
 }
 
 void TriangleMesh::scale(float factor)
diff --git a/xs/src/libslic3r/TriangleMesh.hpp b/xs/src/libslic3r/TriangleMesh.hpp
index caf016960..a035e20f7 100644
--- a/xs/src/libslic3r/TriangleMesh.hpp
+++ b/xs/src/libslic3r/TriangleMesh.hpp
@@ -63,7 +63,7 @@ class TriangleMesh
     bool is_manifold() const;
     void WriteOBJFile(const std::string &output_file) const;
 
-    void transform(const TransformationMatrix &trafo);
+    TriangleMesh transform(const TransformationMatrix &trafo);
 
     void scale(float factor);
     void scale(const Pointf3 &versor);