diff --git a/ProcessLib/HT/CreateHTProcess.cpp b/ProcessLib/HT/CreateHTProcess.cpp
index c1363619e4a5bd26258cbcaeb9ed9d98229e966f..142c7cd987db8912fd7ed1b4211e671aa1e79d33 100644
--- a/ProcessLib/HT/CreateHTProcess.cpp
+++ b/ProcessLib/HT/CreateHTProcess.cpp
@@ -85,11 +85,6 @@ std::unique_ptr<Process> createHTProcess(
         MaterialLib::PorousMedium::createPorousMediaProperties(mesh, config,
                                                                parameters)};
 
-    //! \ogs_file_param{prj__processes__process__HT__fluid}
-    auto const& fluid_config = config.getConfigSubtree("fluid");
-    auto fluid_properties =
-        MaterialLib::Fluid::createFluidProperties(fluid_config);
-
     // Parameter for the density of the solid.
     auto& density_solid = ParameterLib::findParameter<double>(
         config,
@@ -177,7 +172,6 @@ std::unique_ptr<Process> createHTProcess(
         std::make_unique<HTMaterialProperties>(
             std::move(porous_media_properties),
             density_solid,
-            std::move(fluid_properties),
             std::move(media_map),
             specific_heat_capacity_solid,
             thermal_conductivity_solid,
diff --git a/ProcessLib/HT/HTMaterialProperties.h b/ProcessLib/HT/HTMaterialProperties.h
index 3d3a69f743cc84c98d16ef0f9af1814e839b15ff..b375e6e5f94be6b21c694ae0fea3b958f170e73d 100644
--- a/ProcessLib/HT/HTMaterialProperties.h
+++ b/ProcessLib/HT/HTMaterialProperties.h
@@ -29,8 +29,6 @@ struct HTMaterialProperties final
         MaterialLib::PorousMedium::PorousMediaProperties&&
             porous_media_properties_,
         ParameterLib::Parameter<double> const& density_solid_,
-        std::unique_ptr<MaterialLib::Fluid::FluidProperties>&&
-            fluid_properties_,
         std::unique_ptr<MaterialPropertyLib::MaterialSpatialDistributionMap>&&
             media_map_,
         ParameterLib::Parameter<double> const& specific_heat_capacity_solid_,
@@ -42,7 +40,6 @@ struct HTMaterialProperties final
         bool const has_gravity_)
         : porous_media_properties(std::move(porous_media_properties_)),
           density_solid(density_solid_),
-          fluid_properties(std::move(fluid_properties_)),
           media_map(std::move(media_map_)),
           specific_heat_capacity_solid(specific_heat_capacity_solid_),
           thermal_conductivity_solid(thermal_conductivity_solid_),
@@ -61,7 +58,6 @@ struct HTMaterialProperties final
 
     MaterialLib::PorousMedium::PorousMediaProperties porous_media_properties;
     ParameterLib::Parameter<double> const& density_solid;
-    std::unique_ptr<MaterialLib::Fluid::FluidProperties> fluid_properties;
     std::unique_ptr<MaterialPropertyLib::MaterialSpatialDistributionMap>
         media_map;
     ParameterLib::Parameter<double> const& specific_heat_capacity_solid;