diff --git a/opm/material/fluidsystems/blackoilpvt/WaterPvtThermal.hpp b/opm/material/fluidsystems/blackoilpvt/WaterPvtThermal.hpp
index d280acd328b..bcaf1c87823 100644
--- a/opm/material/fluidsystems/blackoilpvt/WaterPvtThermal.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/WaterPvtThermal.hpp
@@ -441,7 +441,6 @@ class WaterPvtThermal
                this->watdentCT2() == data.watdentCT2() &&
                this->watdentCT2() == data.watdentCT2() &&
                this->watJTRefPres() == data.watJTRefPres() &&
-               this->watJT() == data.watJT() &&
                this->watJTC() == data.watJTC() &&
                this->pvtwRefPress() == data.pvtwRefPress() &&
                this->pvtwRefB() == data.pvtwRefB() &&