diff --git a/Polygon_mesh_processing/include/CGAL/Polyhedral_envelope.h b/Polygon_mesh_processing/include/CGAL/Polyhedral_envelope.h
index e89c2551984..5d1ef8e2bc5 100644
--- a/Polygon_mesh_processing/include/CGAL/Polyhedral_envelope.h
+++ b/Polygon_mesh_processing/include/CGAL/Polyhedral_envelope.h
@@ -268,6 +268,12 @@ public:
   /// \name Initialization
   /// @{
 
+  /**
+   * Default constructor, envelope is empty
+   */
+  Polyhedral_envelope()
+  {}
+
   /**
    * Constructor with a triangulated surface mesh.
    * @tparam TriangleMesh a model of `FaceListGraph`