diff --git a/examples/2pinfiltration/spatialparams.hh b/examples/2pinfiltration/spatialparams.hh
index 965ccc84488236806521c0466a054f79111d7448..cef70502a226255c0dc4076e5dcec4543674ef3f 100644
--- a/examples/2pinfiltration/spatialparams.hh
+++ b/examples/2pinfiltration/spatialparams.hh
@@ -94,7 +94,8 @@ public:
     }
 
 
-     // Here we can define which phase is to be considered as the wetting phase. Here the wetting phase is the the first phase of the fluidsystem. In this case that is water.
+     // Here we can define which phase is to be considered as the wetting phase. We choose the first phase
+     // in the fluid system, which is water in our case (see definition of `FluidSystem` property).
     template<class FluidSystem>
     int wettingPhaseAtPos(const GlobalPosition& globalPos) const
     {  return FluidSystem::phase0Idx; }