diff --git a/jenkins/scripts/ping.py b/jenkins/scripts/ping.py
index ad4474aaf9..92afe7432c 100755
--- a/jenkins/scripts/ping.py
+++ b/jenkins/scripts/ping.py
@@ -1,4 +1,15 @@
 #!/usr/bin/env python
+#  Licensed under the Apache License, Version 2.0 (the "License"); you may
+#  not use this file except in compliance with the License. You may obtain
+#  a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#  License for the specific language governing permissions and limitations
+#  under the License.
 
 import sys
 from subprocess import Popen, PIPE
diff --git a/jenkins/scripts/tardiff.py b/jenkins/scripts/tardiff.py
index 8a66f6d21c..8868e46997 100755
--- a/jenkins/scripts/tardiff.py
+++ b/jenkins/scripts/tardiff.py
@@ -1,4 +1,15 @@
 #!/usr/bin/python
+#  Licensed under the Apache License, Version 2.0 (the "License"); you may
+#  not use this file except in compliance with the License. You may obtain
+#  a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#  License for the specific language governing permissions and limitations
+#  under the License.
 
 # tardiff.py -- compare the tar package with git archive. Error out if
 # it's different.  The files to exclude are stored in a file, one per line,
diff --git a/tools/normalize_acl.py b/tools/normalize_acl.py
index 88c9710c7f..a771b31798 100755
--- a/tools/normalize_acl.py
+++ b/tools/normalize_acl.py
@@ -1,4 +1,15 @@
 #!/usr/bin/env python
+#  Licensed under the Apache License, Version 2.0 (the "License"); you may
+#  not use this file except in compliance with the License. You may obtain
+#  a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#  License for the specific language governing permissions and limitations
+#  under the License.
 
 # Usage: normalize_acl.py acl.config [transformation [transformation [...]]]
 #