diff --git a/grid/uggrid/ugintersectionit.cc b/grid/uggrid/ugintersectionit.cc
index 5c85d1455d0e257068a9f217ef703941f92747bb..638988d1311410d54b1e87d3c5d615994605c616 100644
--- a/grid/uggrid/ugintersectionit.cc
+++ b/grid/uggrid/ugintersectionit.cc
@@ -150,7 +150,7 @@ namespace Dune {
 #undef V3_VECTOR_PRODUCT
 
     // normalize
-    outerNormal_ *= (1/outerNormal_.norm2());
+    outerNormal_ *= (1/outerNormal_.two_norm());
 #endif
     return outerNormal_;