diff --git a/dumux/discretization/staggered/freeflow/subcontrolvolumeface.hh b/dumux/discretization/staggered/freeflow/subcontrolvolumeface.hh
index 6d5880916ab63c8aeea0fd089362a20f5c8cd567..c2f0c61bdd301b4f63a277607f4403b2282833fa 100644
--- a/dumux/discretization/staggered/freeflow/subcontrolvolumeface.hh
+++ b/dumux/discretization/staggered/freeflow/subcontrolvolumeface.hh
@@ -203,7 +203,6 @@ public:
     }
 
     //! index of the outside sub control volume for spatial param evaluation
-    // This results in undefined behaviour if boundary is true
     GridIndexType outsideScvIdx() const
     {
         return scvIndices_[1];
diff --git a/dumux/discretization/staggered/subcontrolvolumeface.hh b/dumux/discretization/staggered/subcontrolvolumeface.hh
index 8e63c21b50bb0d66650513704b464d016cfc6fcc..150e35f6874c9093fea9f6ba1452dca2bf072699 100644
--- a/dumux/discretization/staggered/subcontrolvolumeface.hh
+++ b/dumux/discretization/staggered/subcontrolvolumeface.hh
@@ -201,7 +201,6 @@ public:
     }
 
     //! Index of the outside sub control volume
-    // This results in undefined behaviour if boundary is true
     GridIndexType outsideScvIdx() const
     {
         return scvIndices_[1];