diff --git a/checkmk/checkmk-files/netstat.linux b/checkmk/checkmk-files/netstat.linux
index 55a27aeb8a1923c67d91b6e6ce64c3027149246d..60f9c4b975ebc0c826a8826f9c29ed9888afefd8 100644
--- a/checkmk/checkmk-files/netstat.linux
+++ b/checkmk/checkmk-files/netstat.linux
@@ -1,27 +1,15 @@
 #!/bin/sh
-# +------------------------------------------------------------------+
-# |             ____ _               _        __  __ _  __           |
-# |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
-# |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
-# |           | |___| | | |  __/ (__|   <    | |  | | . \            |
-# |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
-# |                                                                  |
-# | Copyright Mathias Kettner 2014             mk@mathias-kettner.de |
-# +------------------------------------------------------------------+
-#
-# This file is part of Check_MK.
-# The official homepage is at http://mathias-kettner.de/check_mk.
-#
-# check_mk 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 in version 2.  check_mk is  distributed
-# in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
-# out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
-# PARTICULAR PURPOSE. See the  GNU General Public License for more de-
-# tails. You should have  received  a copy of the  GNU  General Public
-# License along with GNU Make; see the file  COPYING.  If  not,  write
-# to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
-# Boston, MA 02110-1301 USA.
+# Copyright (C) 2019 tribe29 GmbH - License: GNU General Public License v2
+# This file is part of Checkmk (https://checkmk.com). It is subject to the terms and
+# conditions defined in the file COPYING, which is part of this source code package.
+
+# Reason for this no-op: shellcheck disable=... before the first command disables the error for the
+# entire script.
+:
+
+# Disable unused variable error (needed to keep track of version)
+# shellcheck disable=SC2034
+CMK_VERSION="2.0.0p12"
 
 # This is not part of the standard agent since it can take very
 # long to run if your TCP/UDP table is large. Netstat seems to