diff --git a/COPYRIGHT b/COPYRIGHT
new file mode 100644
index 0000000..39e6a3b
--- /dev/null
+++ b/COPYRIGHT
@@ -0,0 +1 @@
+This library is dual-licensed under Apache 2.0 and MIT terms.
diff --git a/LICENSE-APACHE b/LICENSE-APACHE
new file mode 100644
index 0000000..e90f716
--- /dev/null
+++ b/LICENSE-APACHE
@@ -0,0 +1,8 @@
+Copyright (c) 2018 Zixuan Zhang
+
+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.
+
diff --git a/LICENSE b/LICENSE-MIT
similarity index 100%
rename from LICENSE
rename to LICENSE-MIT