diff --git a/opm/input/eclipse/EclipseState/Grid/FieldProps.hpp b/opm/input/eclipse/EclipseState/Grid/FieldProps.hpp
index 04c8d8c03..c3e851537 100644
--- a/opm/input/eclipse/EclipseState/Grid/FieldProps.hpp
+++ b/opm/input/eclipse/EclipseState/Grid/FieldProps.hpp
@@ -226,6 +226,7 @@ static const std::set<std::string> satfunc = {"SWLPC", "ISWLPC", "SGLPC", "ISGLP
                                               dirfunc("KRGR"),
                                               dirfunc("IKRGR")};
 
+#undef dirfunc
 }
 
 namespace REGIONS {