diff --git a/tutorials/lagrangian/reactingParcelFoam/filter/constant/porosityProperties b/tutorials/lagrangian/reactingParcelFoam/filter/constant/porosityProperties
deleted file mode 100644
index 93c4de650d..0000000000
--- a/tutorials/lagrangian/reactingParcelFoam/filter/constant/porosityProperties
+++ /dev/null
@@ -1,38 +0,0 @@
-/*--------------------------------*- C++ -*----------------------------------*\
-| =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  dev                                   |
-|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
-|    \\/     M anipulation  |                                                 |
-\*---------------------------------------------------------------------------*/
-FoamFile
-{
-    version     2.0;
-    format      ascii;
-    class       dictionary;
-    location    "constant";
-    object      porosityProperties;
-}
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-filter1
-{
-    cellZone        filter;
-    active          true;
-    type            DarcyForchheimer;
-
-    DarcyForchheimerCoeffs
-    {
-        d   d [0 -2 0 0 0 0 0] (500000 -1000 -1000);
-        f   f [0 -1 0 0 0 0 0] (0 0 0);
-
-        coordinateSystem
-        {
-            e1  (1 0 0);
-            e2  (0 1 0);
-        }
-    }
-}
-
-
-// ************************************************************************* //
diff --git a/tutorials/lagrangian/reactingParcelFoam/filter/system/fvOptions b/tutorials/lagrangian/reactingParcelFoam/filter/system/fvOptions
index c7dd4992aa..a6fa8898ba 100644
--- a/tutorials/lagrangian/reactingParcelFoam/filter/system/fvOptions
+++ b/tutorials/lagrangian/reactingParcelFoam/filter/system/fvOptions
@@ -15,6 +15,32 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
+filter1
+{
+    type            explicitPorositySource;
+    selectionMode   cellZone;
+    cellZone        filter;
+    active          true;
+
+    explicitPorositySourceCoeffs
+    {
+        type            DarcyForchheimer;
+
+        DarcyForchheimerCoeffs
+        {
+            d   d [0 -2 0 0 0 0 0] (500000 -1000 -1000);
+            f   f [0 -1 0 0 0 0 0] (0 0 0);
+
+            coordinateSystem
+            {
+                e1  (1 0 0);
+                e2  (0 1 0);
+            }
+        }
+    }
+}
+
+
 massSource1
 {
     type            scalarSemiImplicitSource;