diff --git a/tutorials/incompressible/simpleFoam/turbineSiting/Allrun b/tutorials/incompressible/simpleFoam/turbineSiting/Allrun
index ad6a5f3f80..81d296213c 100755
--- a/tutorials/incompressible/simpleFoam/turbineSiting/Allrun
+++ b/tutorials/incompressible/simpleFoam/turbineSiting/Allrun
@@ -15,6 +15,8 @@ runApplication decomposePar
 
 cp system/decomposeParDict-par system/decomposeParDict
 runParallel snappyHexMesh 2 -overwrite
+# *ProcAddressing files written by decomposePar no longer valid
+rm -f processor*/constant/polyMesh/*ProcAddressing
 
 # Add wildcard entries for meshed patches since not preserved
 # by decomposePar. Notice -literalRE option to add wildcard itself
diff --git a/tutorials/incompressible/simpleFoam/turbineSiting/system/controlDict b/tutorials/incompressible/simpleFoam/turbineSiting/system/controlDict
index f930bfe648..c8159c45a6 100644
--- a/tutorials/incompressible/simpleFoam/turbineSiting/system/controlDict
+++ b/tutorials/incompressible/simpleFoam/turbineSiting/system/controlDict
@@ -32,7 +32,7 @@ writeInterval   50;
 
 purgeWrite      0;
 
-writeFormat     ascii;
+writeFormat     binary; //ascii;
 
 writePrecision  12;