diff --git a/dune/gfe/hyperbolichalfspacepoint.hh b/dune/gfe/hyperbolichalfspacepoint.hh
index 6d8347e250671f8afaadfc6c49d5cbaf236e7063..634ef5c8c79571dffd4b4be791e7fa8627f9ff70 100644
--- a/dune/gfe/hyperbolichalfspacepoint.hh
+++ b/dune/gfe/hyperbolichalfspacepoint.hh
@@ -44,7 +44,7 @@ class HyperbolicHalfspacePoint
             return 8.0/15 - 24*(x-1)/35;
         } else {
             T d = x*x-1;
-            return -6*x/(d*d) + (4*x*x+2)*std::acosh(x)/(std::pow(d,5.2));
+            return -6*x/(d*d) + (4*x*x+2)*std::acosh(x)/(std::pow(d,2.5));
         }
     }