diff --git a/tutorials/combustion/dieselFoam/aachenBomb/0/Ydefault b/tutorials/combustion/dieselFoam/aachenBomb/0/Ydefault
index aa09e6037d..1039e373fe 100644
--- a/tutorials/combustion/dieselFoam/aachenBomb/0/Ydefault
+++ b/tutorials/combustion/dieselFoam/aachenBomb/0/Ydefault
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      Tdefault;
+    object      Ydefault;
 }
 // ************************************************************************* //