diff --git a/opm/input/eclipse/Schedule/Well/WDFAC.hpp b/opm/input/eclipse/Schedule/Well/WDFAC.hpp
index 02921d3ac..36818e953 100644
--- a/opm/input/eclipse/Schedule/Well/WDFAC.hpp
+++ b/opm/input/eclipse/Schedule/Well/WDFAC.hpp
@@ -43,7 +43,7 @@ namespace Opm {
     public:
         static WDFAC serializationTestObject();
 
-        double getDFactor(const Connection& connection, double mu, double rho, double phi, double trans_mult) const;
+        double getDFactor(const Connection& connection, double mu, double rho, double phi) const;
         void updateWDFAC(const DeckRecord& record);
         //void updateWDFAC(const RestartIO::RstWell& rst_well);
         void updateWDFACCOR(const DeckRecord& record);
diff --git a/src/opm/input/eclipse/Schedule/Well/WDFAC.cpp b/src/opm/input/eclipse/Schedule/Well/WDFAC.cpp
index 857486288..a55136b30 100644
--- a/src/opm/input/eclipse/Schedule/Well/WDFAC.cpp
+++ b/src/opm/input/eclipse/Schedule/Well/WDFAC.cpp
@@ -87,7 +87,7 @@ namespace Opm {
                 [](const double tot_cf, const auto& conn) { return tot_cf + conn.CF(); });
     }
 
-    double WDFAC::getDFactor(const Connection& connection, double mu, double rho, double phi, double trans_mult) const {
+    double WDFAC::getDFactor(const Connection& connection, double mu, double rho, double phi) const {
 
         if (m_total_cf < 0.0) {
             throw std::invalid_argument { "Total connection factor is not set" };
@@ -109,8 +109,8 @@ namespace Opm {
         }
         case WDFACTYPE::DAKEMODEL:
         {   
-            double Kh = connection.Kh() * trans_mult;
-            double Ke = connection.Ke() * trans_mult;
+            double Kh = connection.Kh();
+            double Ke = connection.Ke();
             double h = Kh / Ke;
             double rw = connection.rw();
 
diff --git a/tests/parser/ScheduleTests.cpp b/tests/parser/ScheduleTests.cpp
index 7bb763bf9..3d6469280 100644
--- a/tests/parser/ScheduleTests.cpp
+++ b/tests/parser/ScheduleTests.cpp
@@ -5784,22 +5784,21 @@ END
     double rho = 1.0;
     double mu = 0.01*Opm::prefix::centi * Opm::unit::Poise; 
     double phi = 0.3;
-    double trans_mult = 1.0;
 
     // WDFAC overwrites D factor in COMDAT
     BOOST_CHECK(wdfac11.useDFactor());
 
     // well d factor scaled by connection CF. 
-    BOOST_CHECK_CLOSE(wdfac11.getDFactor(well11.getConnections()[0], mu, rho, phi, trans_mult), 6*1*Opm::unit::day, 1e-12);
-    BOOST_CHECK_CLOSE(wdfac21.getDFactor(well21.getConnections()[0], mu, rho, phi, trans_mult), 2*Opm::unit::day, 1e-12);
+    BOOST_CHECK_CLOSE(wdfac11.getDFactor(well11.getConnections()[0], mu, rho, phi), 6*1*Opm::unit::day, 1e-12);
+    BOOST_CHECK_CLOSE(wdfac21.getDFactor(well21.getConnections()[0], mu, rho, phi), 2*Opm::unit::day, 1e-12);
     
     const auto& well12 = sched.getWell("W1", 2);
     const auto& well22 = sched.getWell("W2", 2);
     const auto& wdfac12 = well12.getWDFAC();
     const auto& wdfac22 = well22.getWDFAC();
 
-    BOOST_CHECK_CLOSE(wdfac12.getDFactor(well12.getConnections()[0], mu, rho, phi, trans_mult), 5.19e-1, 3);
-    BOOST_CHECK_CLOSE(wdfac22.getDFactor(well22.getConnections()[0], mu, rho, phi, trans_mult), 2*Opm::unit::day, 1e-12);
+    BOOST_CHECK_CLOSE(wdfac12.getDFactor(well12.getConnections()[0], mu, rho, phi), 5.19e-1, 3);
+    BOOST_CHECK_CLOSE(wdfac22.getDFactor(well22.getConnections()[0], mu, rho, phi), 2*Opm::unit::day, 1e-12);
 
 
     const auto& well13 = sched.getWell("W1", 3);
@@ -5812,8 +5811,8 @@ END
     BOOST_CHECK_CLOSE(well13.getConnections()[0].dFactor(), 0*Opm::unit::day, 1e-12);
     BOOST_CHECK_CLOSE(well13.getConnections()[1].dFactor(), 0*Opm::unit::day, 1e-12);
     BOOST_CHECK_CLOSE(well13.getConnections()[2].dFactor(), 11*Opm::unit::day, 1e-12);
-    BOOST_CHECK_CLOSE(wdfac13.getDFactor(well13.getConnections()[2], mu, rho, phi, trans_mult), 6/3*11*Opm::unit::day, 1e-12);
-    BOOST_CHECK_CLOSE(wdfac23.getDFactor(well23.getConnections()[0], mu, rho, phi, trans_mult), 2*Opm::unit::day, 1e-12);
+    BOOST_CHECK_CLOSE(wdfac13.getDFactor(well13.getConnections()[2], mu, rho, phi), 6/3*11*Opm::unit::day, 1e-12);
+    BOOST_CHECK_CLOSE(wdfac23.getDFactor(well23.getConnections()[0], mu, rho, phi), 2*Opm::unit::day, 1e-12);
 }
 
 BOOST_AUTO_TEST_CASE(createDeckWithBC) {