diff --git a/sal/Package_inc.mk b/sal/Package_inc.mk
index 0e91e08af0a4..425db1d05514 100644
--- a/sal/Package_inc.mk
+++ b/sal/Package_inc.mk
@@ -81,7 +81,6 @@ $(eval $(call gb_Package_add_file,sal_inc,inc/rtl/malformeduriexception.hxx,rtl/
 $(eval $(call gb_Package_add_file,sal_inc,inc/rtl/math.h,rtl/math.h))
 $(eval $(call gb_Package_add_file,sal_inc,inc/rtl/math.hxx,rtl/math.hxx))
 $(eval $(call gb_Package_add_file,sal_inc,inc/rtl/memory.h,rtl/memory.h))
-$(eval $(call gb_Package_add_file,sal_inc,inc/rtl/oustringostreaminserter.hxx,rtl/oustringostreaminserter.hxx))
 $(eval $(call gb_Package_add_file,sal_inc,inc/rtl/process.h,rtl/process.h))
 $(eval $(call gb_Package_add_file,sal_inc,inc/rtl/random.h,rtl/random.h))
 $(eval $(call gb_Package_add_file,sal_inc,inc/rtl/ref.hxx,rtl/ref.hxx))
diff --git a/sal/inc/rtl/oustringostreaminserter.hxx b/sal/inc/rtl/oustringostreaminserter.hxx
deleted file mode 100644
index e29c6378b1ef..000000000000
--- a/sal/inc/rtl/oustringostreaminserter.hxx
+++ /dev/null
@@ -1,21 +0,0 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
-/*
- * This file is part of the LibreOffice project.
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- */
-
-#ifndef INCLUDED_RTL_OUSTRINGOSTREAMINSERTER_HXX
-#define INCLUDED_RTL_OUSTRINGOSTREAMINSERTER_HXX
-
-// depreacted header...  include ustring.hxx instead
-#ifndef CPPUNIT_VERSION // protect agaisnt WaE with include all_headers in qa of strings
-#warning "deprecated header, include rtl/ustring.hxx instead"
-#endif
-#include <rtl/ustring.hxx>
-
-#endif
-
-/* vim:set shiftwidth=4 softtabstop=4 expandtab: */