diff --git a/BGL/test/BGL/test_OpenMesh.cpp b/BGL/test/BGL/test_OpenMesh.cpp
index 0dede3e68ed..e3ddcc9c2ca 100644
--- a/BGL/test/BGL/test_OpenMesh.cpp
+++ b/BGL/test/BGL/test_OpenMesh.cpp
@@ -10,13 +10,29 @@ typedef Traits::edge_descriptor           edge_descriptor;
 typedef Traits::halfedge_descriptor       halfedge_descriptor;
 typedef Traits::vertex_descriptor         vertex_descriptor;
 typedef Traits::face_descriptor           face_descriptor;
-//typedef Kernel::Point_3 Point_3;
 
 int main()
 {
   Om om;
-  for (Om::EdgeHandle ed : edges(om)) {
-          std::cout << "edge" << std::endl;
+  for (Om::EdgeHandle ed : edges(om))
+  {
+    CGAL_USE(ed);
+  }
+  for (edge_descriptor ed : edges(om))
+  {
+    CGAL_USE(ed);
+  }
+  for (halfedge_descriptor hd : halfedges(om))
+  {
+    CGAL_USE(hd);
+  }
+  for (face_descriptor fd : faces(om))
+  {
+    CGAL_USE(fd);
+  }
+  for (vertex_descriptor vd : vertices(om))
+  {
+    CGAL_USE(vd);
   }
   return 0;
 }
diff --git a/SMDS_3/test/SMDS_3/test_c3t3_with_features.cpp b/SMDS_3/test/SMDS_3/test_c3t3_with_features.cpp
index 4373da1fdc0..1270c1d0db8 100644
--- a/SMDS_3/test/SMDS_3/test_c3t3_with_features.cpp
+++ b/SMDS_3/test/SMDS_3/test_c3t3_with_features.cpp
@@ -346,11 +346,10 @@ struct Tester
     // Test vertex iterators
     //-------------------------------------------------------
     std::cout << "Test vertex iterators\n";
-    const Vertex_handle& vertex_to_modify = c3t3.vertices_in_complex_begin();
+    Vertex_handle vertex_to_modify = c3t3.vertices_in_complex_begin();
     Vertex_handle vertex_to_modify_copy = vertex_to_modify;
 
     c3t3.remove_from_complex(vertex_to_modify);
-    // now `vertex_to_modify` is a dangling ref to a `Vertex_handle`
 
     // use a copy of it: `vertex_to_modify_copy`
     c3t3.add_to_complex(vertex_to_modify_copy,corner_index_bis);