diff --git a/Optimal_bounding_box/include/CGAL/Optimal_bounding_box/internal/evolution.h b/Optimal_bounding_box/include/CGAL/Optimal_bounding_box/internal/evolution.h
index 187415d02ed..477c1294fa1 100644
--- a/Optimal_bounding_box/include/CGAL/Optimal_bounding_box/internal/evolution.h
+++ b/Optimal_bounding_box/include/CGAL/Optimal_bounding_box/internal/evolution.h
@@ -139,7 +139,7 @@ public:
     std::size_t gen_iter = 0;
     for(;;)
     {
-#ifdef CGAL_OPTIMAL_BOUNDING_BOX_DEBUG
+#ifdef CGAL_OPTIMAL_BOUNDING_BOX_DEBUG_PP
       std::cout << "- - - - generation #" << gen_iter << "\n";
 #endif
 
@@ -165,7 +165,7 @@ public:
       m_best_v = &(m_population.get_best_vertex());
       Matrix& best_m = m_best_v->matrix();
 
-#ifdef CGAL_OPTIMAL_BOUNDING_BOX_DEBUG
+#ifdef CGAL_OPTIMAL_BOUNDING_BOX_DEBUG_PP
       std::cout << "new best matrix: " << std::endl << best_m << std::endl;
       std::cout << "fitness: " << m_best_v->fitness() << std::endl;
 #endif
@@ -177,7 +177,7 @@ public:
       const FT new_fit_value = m_best_v->fitness();
       const FT difference = new_fit_value - prev_fit_value;
 
-#ifdef CGAL_OPTIMAL_BOUNDING_BOX_DEBUG
+#ifdef CGAL_OPTIMAL_BOUNDING_BOX_DEBUG_PP
       std::cout << "post 2D optimization matrix: " << std::endl << best_m << std::endl;
       std::cout << "new fit value: " << new_fit_value << std::endl;
       std::cout << "difference: " << difference << std::endl;
diff --git a/Optimal_bounding_box/include/CGAL/Optimal_bounding_box/internal/optimize_2.h b/Optimal_bounding_box/include/CGAL/Optimal_bounding_box/internal/optimize_2.h
index 3424bae2017..b4f2ba4a7da 100644
--- a/Optimal_bounding_box/include/CGAL/Optimal_bounding_box/internal/optimize_2.h
+++ b/Optimal_bounding_box/include/CGAL/Optimal_bounding_box/internal/optimize_2.h
@@ -163,7 +163,7 @@ void optimize_along_OBB_axes(typename Traits::Matrix& rot,
   auto it = std::min_element(volumes.begin(), volumes.end());
   typename std::iterator_traits<decltype(it)>::difference_type d = std::distance(volumes.begin(), it);
 
-#ifdef CGAL_OPTIMAL_BOUNDING_BOX_DEBUG
+#ifdef CGAL_OPTIMAL_BOUNDING_BOX_DEBUG_PP
   std::cout << "volumes: " << volumes[0] << " " << volumes[1] << " " << volumes[2] << std::endl;
   std::cout << "angles: " << angles[0] << " " << angles[1] << " " << angles[2] << std::endl;
   std::cout << "min at " << d << std::endl;
diff --git a/Optimal_bounding_box/include/CGAL/Optimal_bounding_box/oriented_bounding_box.h b/Optimal_bounding_box/include/CGAL/Optimal_bounding_box/oriented_bounding_box.h
index 6157e282c9b..0ebf2b207cb 100644
--- a/Optimal_bounding_box/include/CGAL/Optimal_bounding_box/oriented_bounding_box.h
+++ b/Optimal_bounding_box/include/CGAL/Optimal_bounding_box/oriented_bounding_box.h
@@ -86,7 +86,12 @@ void construct_oriented_bounding_box(const PointRange& points,
 
   // Apply the inverse rotation to the rotated axis aligned bounding box
   for(std::size_t i=0; i<8; ++i)
+  {
     obb_points[i] = inverse_transformation.transform(obb_points[i]);
+#ifdef CGAL_OPTIMAL_BOUNDING_BOX_DEBUG
+    std::cout << "  OBB[" << i << "] = " << obb_points[i] << std::endl;
+#endif
+  }
 }
 
 template <typename PointRange, typename Traits>