diff --git a/doc/source/conf.py b/doc/source/conf.py
index 2597f04..cbfcc09 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -1,3 +1,16 @@
+# 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.
+
 # Tempest documentation build configuration file, created by
 # sphinx-quickstart on Tue May 21 17:43:32 2013.
 #