diff --git a/opm/core/io/eclipse/BlackoilEclipseOutputWriter.cpp b/opm/core/io/eclipse/BlackoilEclipseOutputWriter.cpp
index a949732f..66f09055 100644
--- a/opm/core/io/eclipse/BlackoilEclipseOutputWriter.cpp
+++ b/opm/core/io/eclipse/BlackoilEclipseOutputWriter.cpp
@@ -290,8 +290,8 @@ private:
 
     // setup smart pointer for cornerpoint grid
     EclipseGrid (const int dims[],
-                 const EclipseKeyword<double>& coord,
                  const EclipseKeyword<double>& zcorn,
+                 const EclipseKeyword<double>& coord,
                  const EclipseKeyword<double>& actnum,
                  const EclipseKeyword<double>& mapaxes)
         : EclipseHandle (ecl_grid_alloc_GRDECL_kw(dims[0],