diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..43dc755
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 Tursom K. Ulefits
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/web/netty-web/src/main/kotlin/cn/tursom/web/netty/NettyHttpObjectHandler.kt b/web/netty-web/src/main/kotlin/cn/tursom/web/netty/NettyHttpObjectHandler.kt
index cf8d592..aa614b0 100644
--- a/web/netty-web/src/main/kotlin/cn/tursom/web/netty/NettyHttpObjectHandler.kt
+++ b/web/netty-web/src/main/kotlin/cn/tursom/web/netty/NettyHttpObjectHandler.kt
@@ -1,14 +1,15 @@
 package cn.tursom.web.netty
 
 import cn.tursom.web.HttpHandler
+import io.netty.channel.ChannelHandler
 import io.netty.channel.ChannelHandlerContext
 import io.netty.channel.SimpleChannelInboundHandler
 import io.netty.handler.codec.http.HttpContent
 import io.netty.handler.codec.http.HttpObject
 import io.netty.handler.codec.http.HttpRequest
-import io.netty.handler.codec.http.LastHttpContent
 import io.netty.util.AttributeKey
 
+@ChannelHandler.Sharable
 class NettyHttpObjectHandler(
   private val handler: HttpHandler<NettyHttpContent, NettyExceptionContent>
 ) : SimpleChannelInboundHandler<HttpObject>() {