diff --git a/tutorials/mesh/foamyHexMesh/mixerVessel/Allrun-simulation b/tutorials/mesh/foamyHexMesh/mixerVessel/Allrun-simulation
index e789caef9f..f7ad32e474 100755
--- a/tutorials/mesh/foamyHexMesh/mixerVessel/Allrun-simulation
+++ b/tutorials/mesh/foamyHexMesh/mixerVessel/Allrun-simulation
@@ -31,7 +31,7 @@ runApplication setFields
 runApplication decomposePar -force
 
 # Run
-runParallel $application 8
+runParallel $application $nProcs
 
 # Reconstruct
 runApplication reconstructPar -noFunctionObjects