diff --git a/ProcessLib/TH2M/PhaseTransitionModels/PhaseTransitionModel.h b/ProcessLib/TH2M/PhaseTransitionModels/PhaseTransitionModel.h
index 1425a35dbb646809120f23b4a1c8133aa1a8abaa..c6409bb5dc3072f586f549e629b441697b6709a7 100644
--- a/ProcessLib/TH2M/PhaseTransitionModels/PhaseTransitionModel.h
+++ b/ProcessLib/TH2M/PhaseTransitionModels/PhaseTransitionModel.h
@@ -112,11 +112,9 @@ struct PhaseTransitionModel
 
         // check for minimum requirement definitions in media object
         std::array const required_gas_properties = {
-            MaterialPropertyLib::viscosity, MaterialPropertyLib::density,
-            MaterialPropertyLib::thermal_conductivity};
+            MaterialPropertyLib::viscosity, MaterialPropertyLib::density};
         std::array const required_liquid_properties = {
-            MaterialPropertyLib::viscosity, MaterialPropertyLib::density,
-            MaterialPropertyLib::thermal_conductivity};
+            MaterialPropertyLib::viscosity, MaterialPropertyLib::density};
 
         for (auto const& m : media)
         {