diff --git a/dune/gfe/rotation.hh b/dune/gfe/rotation.hh
index 1e03ce2e9fdfa138cb0d491759a640650c5c54e4..44f27a3fa53637ca8d0408be113126b1e3e75c2f 100644
--- a/dune/gfe/rotation.hh
+++ b/dune/gfe/rotation.hh
@@ -438,6 +438,7 @@ public:
         result[2] = 2 * dist * (-2 * arccosDer_pInvq_4 * pInv[2]);
         result[3] = 2 * dist * ( 2 * arccosDer_pInvq_4 * pInv[3]);
         
+        return result;
     }
     
     /** \brief Interpolate between two rotations */