diff --git a/tutorials/icoFoam/cavity/constant/polyMesh/blockMeshDict b/tutorials/icoFoam/cavity/constant/polyMesh/blockMeshDict
index d89701b42013d793e89ce6a840e1f385e415f326..8cd967d0a920980d81bab51aba197dadb0e5e4cc 100644
--- a/tutorials/icoFoam/cavity/constant/polyMesh/blockMeshDict
+++ b/tutorials/icoFoam/cavity/constant/polyMesh/blockMeshDict
@@ -37,25 +37,59 @@ edges
 (
 );
 
-patches         
+//patches         
+//(
+//    wall movingWall 
+//    (
+//        (3 7 6 2)
+//    )
+//    wall fixedWalls 
+//    (
+//        (0 4 7 3)
+//        (2 6 5 1)
+//        (1 5 4 0)
+//    )
+//    empty frontAndBack 
+//    (
+//        (0 3 2 1)
+//        (4 5 6 7)
+//    )
+//);
+
+boundary         
 (
-    wall movingWall 
-    (
-        (3 7 6 2)
-    )
-    wall fixedWalls 
-    (
-        (0 4 7 3)
-        (2 6 5 1)
-        (1 5 4 0)
-    )
-    empty frontAndBack 
-    (
-        (0 3 2 1)
-        (4 5 6 7)
-    )
+    movingWall
+    {
+        type wall;
+        faces
+        (
+            (3 7 6 2)
+        );
+    }
+
+    fixedWalls
+    {
+        type wall;
+        faces
+        (
+            (0 4 7 3)
+            (2 6 5 1)
+            (1 5 4 0)
+        );
+    }
+
+    frontAndBack 
+    {
+        type empty;
+        faces
+        (
+            (0 3 2 1)
+            (4 5 6 7)
+        );
+    }
 );
 
+
 mergePatchPairs 
 (
 );