diff --git a/Fltk/classificationEditor.cpp b/Fltk/classificationEditor.cpp
index b9203faf09eef3183e7680b29989a35b5bfaaf3a..15fd739df14ef832e9f286cd6ccc598b8336edd8 100644
--- a/Fltk/classificationEditor.cpp
+++ b/Fltk/classificationEditor.cpp
@@ -450,7 +450,7 @@ classificationEditor::classificationEditor() : selected(0)
   const int width = (int)(3.15 * BBB), height = (int)(9.5 * BH);
 
   window = new paletteWindow
-    (width, height, CTX::instance()->nonModalWindows ? true : false, "Reclassify");
+    (width, height, CTX::instance()->nonModalWindows ? true : false, "Reclassify 2D");
   window->box(GMSH_WINDOW_BOX);
   
   int x = WB, y = WB;
diff --git a/benchmarks/extrude/aorta_extrude.geo b/benchmarks/extrude/aorta_extrude.geo
index 5b41a517b929a72f526852c2f412f6c02b48d9be..91ee2e39ab95d430d207af7b21b85e6e1577b7d8 100644
--- a/benchmarks/extrude/aorta_extrude.geo
+++ b/benchmarks/extrude/aorta_extrude.geo
@@ -3,7 +3,10 @@ CreateTopology;
 
 Merge "aortaRADIUS2.bgm";
 
+// create a boundary layer, whose tickness is given in View[0]
 out1[] = Extrude{Surface{1}; Layers{4, 0.5}; Using Index[0]; Using View[0]; };
+
+// we could create a second boundary layer inside...
 //out2[] = Extrude{Surface{1}; Layers{4, -0.5}; Using Index[1]; Using View[0]; };
 
 Line Loop(60) = {9}; Plane Surface(61) = {60};