diff --git a/conn/client.go b/conn/client.go
index 27bdd904426bde046b767db6e653d7b29c957430..47bee5180843093514d2c40525990f76d6cfa5e1 100644
--- a/conn/client.go
+++ b/conn/client.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 DGraph Labs, Inc.
+ *
+ * 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.
+ */
+
 package conn
 
 import (
diff --git a/conn/codec.go b/conn/codec.go
index 08954f2bb0dca91978b70c1f8ca1193fcb7fed76..ec921739fceb35e0f213bcc79a354a054989325c 100644
--- a/conn/codec.go
+++ b/conn/codec.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 DGraph Labs, Inc.
+ *
+ * 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.
+ */
+
 package conn
 
 import (
diff --git a/conn/codec_test.go b/conn/codec_test.go
index ce3fe0e7b2dae2799f004bcb06338d93a951ae4b..16a305d11d5850d9113ac576957915399d8a1579 100644
--- a/conn/codec_test.go
+++ b/conn/codec_test.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 DGraph Labs, Inc.
+ *
+ * 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.
+ */
+
 package conn
 
 import (
diff --git a/conn/pool.go b/conn/pool.go
index dc9289e7957b41e6ac10108f7dc88707cde04195..76a107e53b19518223dbbd61ab4c7e7d18e31cfc 100644
--- a/conn/pool.go
+++ b/conn/pool.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 DGraph Labs, Inc.
+ *
+ * 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.
+ */
+
 package conn
 
 import (
diff --git a/conn/server.go b/conn/server.go
index 7085d35305d27dac7717f0c03a1aca6e40e4757a..406ea9bc8a96780d56fc9ed37d60aa04ab5278c5 100644
--- a/conn/server.go
+++ b/conn/server.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 DGraph Labs, Inc.
+ *
+ * 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.
+ */
+
 package conn
 
 import (