diff --git a/dumux/material/solidsystems/CMakeLists.txt b/dumux/material/solidsystems/CMakeLists.txt
index 734df98602a337591f23c04ce632d8a42b3b4d79..7ac9b1f3583d48b231b5aaa1c1aa9bb0ff1a2342 100644
--- a/dumux/material/solidsystems/CMakeLists.txt
+++ b/dumux/material/solidsystems/CMakeLists.txt
@@ -1,5 +1,4 @@
 install(FILES
 1csolid.hh
 compositionalsolidphase.hh
-inertsolidphase.hh
 DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/dumux/material/solidsystems)
diff --git a/dumux/material/solidsystems/inertsolidphase.hh b/dumux/material/solidsystems/inertsolidphase.hh
deleted file mode 100644
index 5020d86148b9496fea4e5588a970f7d91187b578..0000000000000000000000000000000000000000
--- a/dumux/material/solidsystems/inertsolidphase.hh
+++ /dev/null
@@ -1,30 +0,0 @@
-// -*- 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/>.   *
- *****************************************************************************/
-/*!
- * \file
- * \ingroup SolidSystems
- * \brief A solid phase consisting of a single inert solid component.
- */
-#ifndef DUMUX_SOLIDSYSTEMS_INERT_SOLID_PHASE_HH
-#define DUMUX_SOLIDSYSTEMS_INERT_SOLID_PHASE_HH
-
-#warning "This header is deprecated and will be removed after release 3.2. Use solidsystem.hh and SolidSystems::OneCSolid."
-#include <dumux/material/solidsystems/1csolid.hh>
-
-#endif