diff --git a/roaring/containers.go b/roaring/containers.go
index ac523676c..08c8d25eb 100644
--- a/roaring/containers.go
+++ b/roaring/containers.go
@@ -1,3 +1,17 @@
+// Copyright (C) 2017-2018 Pilosa Corp. All rights reserved.
+//
+// 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 roaring
 
 type SliceContainers struct {
diff --git a/roaring/containers_test.go b/roaring/containers_test.go
index c7d847c05..ea3106a96 100644
--- a/roaring/containers_test.go
+++ b/roaring/containers_test.go
@@ -1,3 +1,17 @@
+// Copyright (C) 2017-2018 Pilosa Corp. All rights reserved.
+//
+// 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 roaring
 
 import (
diff --git a/server/enterprise.go b/server/enterprise.go
index 320c90a4c..6dd3e5540 100644
--- a/server/enterprise.go
+++ b/server/enterprise.go
@@ -1,3 +1,17 @@
+// Copyright (C) 2017-2018 Pilosa Corp. All rights reserved.
+//
+// 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.
+//
 // +build enterprise
 
 package server
diff --git a/utils_test.go b/utils_test.go
index 05afeac19..6f9eca75a 100644
--- a/utils_test.go
+++ b/utils_test.go
@@ -1,3 +1,17 @@
+// Copyright (C) 2017-2018 Pilosa Corp. All rights reserved.
+//
+// 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 pilosa
 
 import (