diff --git a/doc/doxygen/Doxylocal b/doc/doxygen/Doxylocal
index 7d55fb5f5778fab97b38c780103e9218bb8eb6d5..a87ad9bf690e3d83e52de30417eed2e2fd309c96 100644
--- a/doc/doxygen/Doxylocal
+++ b/doc/doxygen/Doxylocal
@@ -29,7 +29,7 @@ HTML_FILE_EXTENSION    = .xhtml
 
 USE_MATHJAX            = YES
 
-EXCLUDE_PATTERNS       =
+EXCLUDE_PATTERNS       = *_.hh
 
 ALIASES               += "warning=\xrefitem warning \"Warning List\" \"Warning List\""
 
diff --git a/dumux/geomechanics/elastic/fvspatialparams.hh b/dumux/geomechanics/elastic/fvspatialparams.hh
index 73635a6a4601c2648b808017deef97b4047f2c41..47a994b1e00070a0e6c3866357381d77e7396d7d 100644
--- a/dumux/geomechanics/elastic/fvspatialparams.hh
+++ b/dumux/geomechanics/elastic/fvspatialparams.hh
@@ -30,24 +30,10 @@
 
 #include <dumux/common/fvspatialparams.hh>
 #include <dumux/common/typetraits/isvalid.hh>
+#include <dumux/geomechanics/spatialparamstraits_.hh>
 
 namespace Dumux {
 
-#ifndef DOXYGEN
-namespace Detail {
-// helper struct detecting if the user-defined spatial params class has a lameParamsAtPos function
-template<class GlobalPosition>
-struct hasLameParamsAtPos
-{
-    template<class SpatialParams>
-    auto operator()(const SpatialParams& a)
-    -> decltype(a.lameParamsAtPos(std::declval<GlobalPosition>()))
-    {}
-};
-
-} // end namespace Detail
-#endif
-
 /*!
  * \ingroup SpatialParameters
  * \brief The base class for spatial parameters of linear elastic geomechanical problems
diff --git a/dumux/geomechanics/poroelastic/fvspatialparams.hh b/dumux/geomechanics/poroelastic/fvspatialparams.hh
index 4805c4d59d26661bc9c60aa752fbc8bfadfeb5ed..525bcf846a5e17b1f51d50a1b7517839bbd9edf4 100644
--- a/dumux/geomechanics/poroelastic/fvspatialparams.hh
+++ b/dumux/geomechanics/poroelastic/fvspatialparams.hh
@@ -27,8 +27,8 @@
 #include <memory>
 
 #include <dumux/common/typetraits/isvalid.hh>
-#include <dumux/geomechanics/elastic/fvspatialparams.hh> // for some helpers in detail namespace
 #include <dumux/common/fvporousmediumspatialparams.hh>
+#include <dumux/geomechanics/spatialparamstraits_.hh>
 
 namespace Dumux {
 
diff --git a/dumux/geomechanics/spatialparamstraits_.hh b/dumux/geomechanics/spatialparamstraits_.hh
new file mode 100644
index 0000000000000000000000000000000000000000..9f50cff096acf2875a7b7e004045a52b8086ad1f
--- /dev/null
+++ b/dumux/geomechanics/spatialparamstraits_.hh
@@ -0,0 +1,37 @@
+// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+// vi: set et ts=4 sw=4 sts=4:
+/*****************************************************************************
+ *   See the file COPYING for full copying permissions.                      *
+ *                                                                           *
+ *   This program is free software: you can redistribute it and/or modify    *
+ *   it under the terms of the GNU General Public License as published by    *
+ *   the Free Software Foundation, either version 3 of the License, or       *
+ *   (at your option) any later version.                                     *
+ *                                                                           *
+ *   This program is distributed in the hope that it will be useful,         *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of          *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the            *
+ *   GNU General Public License for more details.                            *
+ *                                                                           *
+ *   You should have received a copy of the GNU General Public License       *
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>.   *
+ *****************************************************************************/
+#ifndef DUMUX_GEOMECHANICS_SPATIAL_PARAMS_TRAITS__HH
+#define DUMUX_GEOMECHANICS_SPATIAL_PARAMS_TRAITS__HH
+#ifndef DOXYGEN
+
+namespace Dumux::Detail {
+
+// helper struct detecting if the user-defined spatial params class has a lameParamsAtPos function
+template<class GlobalPosition>
+struct hasLameParamsAtPos
+{
+    template<class SpatialParams>
+    auto operator()(const SpatialParams& a)
+    -> decltype(a.lameParamsAtPos(std::declval<GlobalPosition>()))
+    {}
+};
+
+} // end namespace Dumux::Detail
+#endif  // DOXYGEN
+#endif