diff --git a/test/porousmediumflow/2p2c/implicit/chemicalnonequilibrium/params.input b/test/porousmediumflow/2p2c/implicit/chemicalnonequilibrium/params.input
index 75971a389a0cc632ef2370e09da23a23ccbe085b..1b6a94cf71466db1efb057a69054a7bb44c27ebd 100644
--- a/test/porousmediumflow/2p2c/implicit/chemicalnonequilibrium/params.input
+++ b/test/porousmediumflow/2p2c/implicit/chemicalnonequilibrium/params.input
@@ -12,9 +12,10 @@ Name = chemicalnonequilibrium
 EnableGravity = false
 
 [SpatialParams]
-WettingNonwettingAreaA1 = -1.603e-01
-WettingNonwettingAreaA2 = 1.429e-05
-WettingNonwettingAreaA3 = 1.915e-01
+WettingNonwettingArea.PcMax = 0 # will be overwritten internally
+WettingNonwettingArea.A1 = -1.603e-01
+WettingNonwettingArea.A2 = 1.429e-05
+WettingNonwettingArea.A3 = 1.915e-01
 MeanPoreSize = 5e-4
 MassTransferFactor = 0.5
 BrooksCoreyPcEntry = 1e4
diff --git a/test/porousmediumflow/2p2c/implicit/chemicalnonequilibrium/spatialparams.hh b/test/porousmediumflow/2p2c/implicit/chemicalnonequilibrium/spatialparams.hh
index 415d821956bc8c78ce57b4ea06af37e520f3e369..73efbc3e0ab95b66b604a331a396fbd608432c2c 100644
--- a/test/porousmediumflow/2p2c/implicit/chemicalnonequilibrium/spatialparams.hh
+++ b/test/porousmediumflow/2p2c/implicit/chemicalnonequilibrium/spatialparams.hh
@@ -74,11 +74,7 @@ public:
         characteristicLength_ = getParam<Scalar>("SpatialParams.MeanPoreSize");
         factorMassTransfer_ = getParam<Scalar>("SpatialParams.MassTransferFactor");
 
-        using WettingNonwettingInterfacialAreaParams = typename WettingNonwettingInterfacialArea::BasicParams;
-        WettingNonwettingInterfacialAreaParams anwParams;
-        anwParams.setA1(getParam<Scalar>("SpatialParams.WettingNonwettingAreaA1"));
-        anwParams.setA2(getParam<Scalar>("SpatialParams.WettingNonwettingAreaA2"));
-        anwParams.setA3(getParam<Scalar>("SpatialParams.WettingNonwettingAreaA3"));
+        auto anwParams = WettingNonwettingInterfacialArea::makeBasicParams("SpatialParams.WettingNonwettingArea");
 
         // determine maximum capillary pressure for wetting-nonwetting surface
         anwParams.setPcMax(pcKrSwCurve_.pc(/*sw = */0.0));