diff --git a/Surface_mesh_parameterization/include/CGAL/Surface_mesh_parameterization/MVC_post_processor_3.h b/Surface_mesh_parameterization/include/CGAL/Surface_mesh_parameterization/MVC_post_processor_3.h
index 7803a1980a4..b0028f26fea 100644
--- a/Surface_mesh_parameterization/include/CGAL/Surface_mesh_parameterization/MVC_post_processor_3.h
+++ b/Surface_mesh_parameterization/include/CGAL/Surface_mesh_parameterization/MVC_post_processor_3.h
@@ -726,7 +726,9 @@ public:
 
     // Not sure how to handle non-simple yet @fixme
     if(!is_param_border_simple) {
+#ifdef CGAL_SMP_ARAP_DEBUG
       std::cerr << "Border is not simple!" << std::endl;
+#endif
       return ERROR_NON_CONVEX_BORDER;
     }