diff --git a/src/02-basic-grid-interface.cc b/src/02-basic-grid-interface.cc
index 74b09ec13ad291eaa44a54b906128cffc4e7aa76..7cfbdbeac4a37f32cc70416cc4b60ff5e789f4ce 100644
--- a/src/02-basic-grid-interface.cc
+++ b/src/02-basic-grid-interface.cc
@@ -52,7 +52,7 @@ int main(int argc, char** argv)
 
     Grid grid(l, E);
 
-//    grid.globalRefine(2);
+    grid.globalRefine(2);
 
     auto gridView = grid.leafGridView();