diff --git a/protocol/src/protocol/mod.rs b/protocol/src/protocol/mod.rs
index 45d74ef..1aacef2 100644
--- a/protocol/src/protocol/mod.rs
+++ b/protocol/src/protocol/mod.rs
@@ -1,3 +1,17 @@
+// Copyright 2015 Matthew Collins
+//
+// 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.
+
 #![allow(dead_code)]
 
 use openssl;
diff --git a/protocol/src/protocol/mojang.rs b/protocol/src/protocol/mojang.rs
index c692e30..8798f85 100644
--- a/protocol/src/protocol/mojang.rs
+++ b/protocol/src/protocol/mojang.rs
@@ -1,4 +1,16 @@
-
+// Copyright 2015 Matthew Collins
+//
+// 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.
 
 use openssl;
 use serde_json;
diff --git a/protocol/src/protocol/packet.rs b/protocol/src/protocol/packet.rs
index f201ba6..fad09f5 100644
--- a/protocol/src/protocol/packet.rs
+++ b/protocol/src/protocol/packet.rs
@@ -1,3 +1,17 @@
+// Copyright 2015 Matthew Collins
+//
+// 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.
+
 use format;
 
 state_packets!(