diff --git a/ProcessLib/ThermoRichardsMechanics/ConstitutiveStress_StrainTemperature/Traits.h b/ProcessLib/ThermoRichardsMechanics/ConstitutiveStress_StrainTemperature/Traits.h
index df46ae7d63eb1dec86d3deec7e7511285327ee9c..80fd219a5902587b139c369d82ce9b60cf7495af 100644
--- a/ProcessLib/ThermoRichardsMechanics/ConstitutiveStress_StrainTemperature/Traits.h
+++ b/ProcessLib/ThermoRichardsMechanics/ConstitutiveStress_StrainTemperature/Traits.h
@@ -57,10 +57,6 @@ struct ConstitutiveTraits
     using ConstitutiveSetting = ProcessLib::ThermoRichardsMechanics::
         ConstitutiveStress_StrainTemperature::ConstitutiveSetting<
             DisplacementDim>;
-
-    using ElasticTangentStiffnessModel = ProcessLib::ThermoRichardsMechanics::
-        ConstitutiveStress_StrainTemperature::ElasticTangentStiffnessModel<
-            DisplacementDim>;
 };
 }  // namespace ConstitutiveStress_StrainTemperature
 }  // namespace ProcessLib::ThermoRichardsMechanics