diff --git a/tutorials/modules/CHT/coolingCylinder2D/system/blockMeshDict b/tutorials/modules/CHT/coolingCylinder2D/system/blockMeshDict
index 4090f83b4b..e258914dce 100644
--- a/tutorials/modules/CHT/coolingCylinder2D/system/blockMeshDict
+++ b/tutorials/modules/CHT/coolingCylinder2D/system/blockMeshDict
@@ -124,6 +124,12 @@ faces
 (
 );
 
+defaultPatch
+{
+    name    frontAndBack;
+    type    empty;
+}
+
 boundary
 (
     inlet
@@ -155,37 +161,6 @@ boundary
             (13 18 19 15)
         );
     }
-
-    frontAndBack
-    {
-        type empty;
-        faces
-        (
-            // Side 1
-            (10 14 6 2)
-            (14 6 7 15)
-            (15 7 3 11)
-            (3 11 10 2)
-            (15 11 17 19)
-            (6 7 27 26)
-            (27 6 2 23)
-            (2 23 22 3)
-            (3 22 26 7)
-            (26 27 23 22)
-
-            // Side 2
-            (12 13 5 4)
-            (8 12 4 0)
-            (9 8 0 1)
-            (13 9 1 5)
-            (4 5 25 24)
-            (0 4 24 20)
-            (1 0 20 21)
-            (5 1 21 25)
-            (21 20 24 25)
-            (18 16 9 13)
-        );
-    }
 );