diff --git a/tutorials/compressible/rhoSimpleFoam/angledDuctExplicitFixedCoeff/constant/fvOptions b/tutorials/compressible/rhoSimpleFoam/angledDuctExplicitFixedCoeff/constant/fvOptions
index 85390e4e5..12501d40f 100644
--- a/tutorials/compressible/rhoSimpleFoam/angledDuctExplicitFixedCoeff/constant/fvOptions
+++ b/tutorials/compressible/rhoSimpleFoam/angledDuctExplicitFixedCoeff/constant/fvOptions
@@ -25,7 +25,6 @@ porosity
         cellZone        porosity;
         type            fixedCoeff;
         active          yes;
-        cellZone        porosity;
 
         fixedCoeffCoeffs
         {