diff --git a/tutorials/legacy/incompressible/dnsFoam/boxTurb16/system/controlDict b/tutorials/legacy/incompressible/dnsFoam/boxTurb16/system/controlDict
index f17981c14b..c23416e0bd 100644
--- a/tutorials/legacy/incompressible/dnsFoam/boxTurb16/system/controlDict
+++ b/tutorials/legacy/incompressible/dnsFoam/boxTurb16/system/controlDict
@@ -44,5 +44,6 @@ timePrecision   6;
 
 runTimeModifiable true;
 
+graphFormat     raw;
 
 // ************************************************************************* //