diff --git a/src/lib/geogram/delaunay/periodic_delaunay_3d.cpp b/src/lib/geogram/delaunay/periodic_delaunay_3d.cpp
index 7aee8eb03ac..6c38b87b184 100644
--- a/src/lib/geogram/delaunay/periodic_delaunay_3d.cpp
+++ b/src/lib/geogram/delaunay/periodic_delaunay_3d.cpp
@@ -3821,14 +3821,17 @@ namespace GEO {
         // Insert points in all BRIO levels
         for(; lvl<levels.size()-1; ++lvl) {
 
+            index_t lvl_b = levels[lvl];
+            index_t lvl_e = levels[lvl+1];
+
             if(benchmark_mode_) {
                 Logger::out(phase) << "Level "
-				   << lvl << " : start" << std::endl;
+				   << lvl << " : start "
+				   << " nbv = "
+				   << (lvl_e - lvl_b)
+				   << std::endl;
             }
 
-            index_t lvl_b = levels[lvl];
-            index_t lvl_e = levels[lvl+1];
-
             index_t work_size = (lvl_e - lvl_b)/index_t(threads_.size());
 
             // Initialize threads