diff --git a/src/libslic3r/SLAPrintSteps.cpp b/src/libslic3r/SLAPrintSteps.cpp
index b72221fb3..d6620b453 100644
--- a/src/libslic3r/SLAPrintSteps.cpp
+++ b/src/libslic3r/SLAPrintSteps.cpp
@@ -493,7 +493,7 @@ void SLAPrint::Steps::slice_model(SLAPrintObject &po)
         sla::swap_normals(interiormesh);
         params.mode = MeshSlicingParams::SlicingMode::Regular;
 
-        std::vector<ExPolygons> interior_slices = slice_mesh_ex(interiormesh, slice_grid, closing_r, thr);
+        std::vector<ExPolygons> interior_slices = slice_mesh_ex(interiormesh, slice_grid, params, thr);
 
         sla::ccr::for_each(size_t(0), interior_slices.size(),
                            [&po, &interior_slices] (size_t i) {
diff --git a/src/libslic3r/TriangleMesh.hpp b/src/libslic3r/TriangleMesh.hpp
index 3d2364d36..8ac0e9871 100644
--- a/src/libslic3r/TriangleMesh.hpp
+++ b/src/libslic3r/TriangleMesh.hpp
@@ -113,29 +113,6 @@ private:
     std::vector<size_t>     m_vertex_faces_all;
 };
 
-// Index of face indices incident with a vertex index.
-struct VertexFaceIndex
-{
-public:
-    using iterator = std::vector<size_t>::const_iterator;
-
-    VertexFaceIndex(const indexed_triangle_set &its) { this->create(its); }
-    VertexFaceIndex() {}
-
-    void create(const indexed_triangle_set &its);
-    void clear() { m_vertex_to_face_start.clear(); m_vertex_faces_all.clear(); }
-
-    // Iterators of face indices incident with the input vertex_id.
-    iterator begin(size_t vertex_id) const throw() { return m_vertex_faces_all.begin() + m_vertex_to_face_start[vertex_id]; }
-    iterator end  (size_t vertex_id) const throw() { return m_vertex_faces_all.begin() + m_vertex_to_face_start[vertex_id + 1]; }
-    // Vertex incidence.
-    size_t   count(size_t vertex_id) const throw() { return m_vertex_to_face_start[vertex_id + 1] - m_vertex_to_face_start[vertex_id]; }
-
-private:
-    std::vector<size_t>     m_vertex_to_face_start;
-    std::vector<size_t>     m_vertex_faces_all;
-};
-
 // Map from a face edge to a unique edge identifier or -1 if no neighbor exists.
 // Two neighbor faces share a unique edge identifier even if they are flipped.
 // Used for chaining slice lines into polygons.