diff --git a/Applications/Utils/ModelPreparation/PartitionMesh/NodeWiseMeshPartitioner.cpp b/Applications/Utils/ModelPreparation/PartitionMesh/NodeWiseMeshPartitioner.cpp
index d2d627a7141cba19145b6ea0dd1bae3e9e25d72d..1942eb37d0aeae8ec708f7f2a59d38f9bafdb819 100644
--- a/Applications/Utils/ModelPreparation/PartitionMesh/NodeWiseMeshPartitioner.cpp
+++ b/Applications/Utils/ModelPreparation/PartitionMesh/NodeWiseMeshPartitioner.cpp
@@ -21,7 +21,6 @@
 #include "BaseLib/Error.h"
 #include "BaseLib/FileTools.h"
 #include "BaseLib/Logging.h"
-#include "BaseLib/Stream.h"
 #include "IntegrationPointDataTools.h"
 #include "MeshLib/Elements/Elements.h"
 #include "MeshLib/IO/VtkIO/VtuInterface.h"
diff --git a/BaseLib/Stream.h b/BaseLib/Stream.h
deleted file mode 100644
index a05b6d0fa17f12b45863a7f8c2ec57ea1a75636b..0000000000000000000000000000000000000000
--- a/BaseLib/Stream.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/**
- * \author Norihiro Watanabe
- * \date   2014-03-07
- * \brief  Helper tools for debugging
- *
- * \file
- * \copyright
- * Copyright (c) 2012-2022, OpenGeoSys Community (http://www.opengeosys.org)
- *            Distributed under a Modified BSD License.
- *              See accompanying file LICENSE.txt or
- *              http://www.opengeosys.org/project/license
- *
- */
-
-#pragma once
-
-#include <algorithm>
-#include <iterator>
-#include <ostream>
-#include <vector>
-
-template <typename T>
-std::ostream& operator<<(std::ostream& os, const std::vector<T>& v)
-{
-    std::copy(v.begin(), v.end(), std::ostream_iterator<T>(os, " "));
-    os << "\n";
-    return os;
-}