diff --git a/poky/scripts/lib/build_perf/__init__.py b/poky/scripts/lib/build_perf/__init__.py
index 1f8b729..dcbb780 100644
--- a/poky/scripts/lib/build_perf/__init__.py
+++ b/poky/scripts/lib/build_perf/__init__.py
@@ -1,14 +1,7 @@
 #
 # Copyright (c) 2017, Intel Corporation.
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms and conditions of the GNU General Public License,
-# version 2, as published by the Free Software Foundation.
-#
-# This program is distributed in the hope 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.
+# SPDX-License-Identifier: GPL-2.0-only
 #
 """Build performance test library functions"""
 
diff --git a/poky/scripts/lib/build_perf/html.py b/poky/scripts/lib/build_perf/html.py
index 578bb16..d1273c9 100644
--- a/poky/scripts/lib/build_perf/html.py
+++ b/poky/scripts/lib/build_perf/html.py
@@ -1,14 +1,7 @@
 #
 # Copyright (c) 2017, Intel Corporation.
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms and conditions of the GNU General Public License,
-# version 2, as published by the Free Software Foundation.
-#
-# This program is distributed in the hope 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.
+# SPDX-License-Identifier: GPL-2.0-only
 #
 """Helper module for HTML reporting"""
 from jinja2 import Environment, PackageLoader
diff --git a/poky/scripts/lib/build_perf/report.py b/poky/scripts/lib/build_perf/report.py
index d99a367..4e8e2a8 100644
--- a/poky/scripts/lib/build_perf/report.py
+++ b/poky/scripts/lib/build_perf/report.py
@@ -1,14 +1,7 @@
 #
 # Copyright (c) 2017, Intel Corporation.
 #
-# This program is free software; you can redistribute it and/or modify it
-# under the terms and conditions of the GNU General Public License,
-# version 2, as published by the Free Software Foundation.
-#
-# This program is distributed in the hope 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.
+# SPDX-License-Identifier: GPL-2.0-only
 #
 """Handling of build perf test reports"""
 from collections import OrderedDict, Mapping, namedtuple