diff --git a/opm/autodiff/BlackoilModelBase.hpp b/opm/autodiff/BlackoilModelBase.hpp
index a6d8522c2..785ded71e 100644
--- a/opm/autodiff/BlackoilModelBase.hpp
+++ b/opm/autodiff/BlackoilModelBase.hpp
@@ -180,7 +180,7 @@ namespace Opm {
 
         /// \brief compute the relative change between to simulation states
         //  \return || u^n+1 - u^n || / || u^n+1 ||
-        double computeTimeError( const SimulatorState& previous, const SimulatorState& current ) const;
+        double relativeChange( const SimulatorState& previous, const SimulatorState& current ) const;
 
         /// The size (number of unknowns) of the nonlinear system of equations.
         int sizeNonLinear() const;
diff --git a/opm/autodiff/BlackoilModelBase_impl.hpp b/opm/autodiff/BlackoilModelBase_impl.hpp
index 6b560f9d6..f768352ab 100644
--- a/opm/autodiff/BlackoilModelBase_impl.hpp
+++ b/opm/autodiff/BlackoilModelBase_impl.hpp
@@ -2387,8 +2387,8 @@ namespace detail {
     template <class Grid, class Implementation>
     double
     BlackoilModelBase<Grid, Implementation>::
-    computeTimeError(const SimulatorState& previous,
-                     const SimulatorState& current ) const
+    relativeChange(const SimulatorState& previous,
+                   const SimulatorState& current ) const
     {
         std::vector< double > p0  ( previous.pressure() );
         std::vector< double > sat0( previous.saturation() );