diff --git a/Makefile b/Makefile
index de23716..65898bd 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,18 @@
+#
+# Copyright 2019 RBKmoney
+
+# 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.
+
 REBAR := $(shell which rebar3 2>/dev/null || which ./rebar3)
 
 all: compile
diff --git a/elvis.config b/elvis.config
index bff3a54..7b7a04b 100644
--- a/elvis.config
+++ b/elvis.config
@@ -1,3 +1,19 @@
+%%%
+%%% Copyright 2019 RBKmoney
+%%%
+%%% 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.
+%%%
+
 [
     {elvis, [
         {config, [
diff --git a/rebar.config b/rebar.config
index 044f289..2065485 100644
--- a/rebar.config
+++ b/rebar.config
@@ -1,3 +1,19 @@
+%%%
+%%% Copyright 2019 RBKmoney
+%%%
+%%% 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.
+%%%
+
 %% Common project erlang options.
 {erl_opts, [
 
diff --git a/src/cowboy_kitten.app.src b/src/cowboy_kitten.app.src
index 98f38d9..361d37d 100644
--- a/src/cowboy_kitten.app.src
+++ b/src/cowboy_kitten.app.src
@@ -1,3 +1,19 @@
+%%%
+%%% Copyright 2019 RBKmoney
+%%%
+%%% 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.
+%%%
+
 {application, cowboy_kitten, [
     {description, "Respond them with style"},
     {vsn, "0.1.0"},
diff --git a/src/cowboy_kitten.erl b/src/cowboy_kitten.erl
index 9e48a9a..24ea4ab 100644
--- a/src/cowboy_kitten.erl
+++ b/src/cowboy_kitten.erl
@@ -1,3 +1,19 @@
+%%%
+%%% Copyright 2019 RBKmoney
+%%%
+%%% 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.
+%%%
+
 -module(cowboy_kitten).
 -behaviour(cowboy_stream).