diff --git a/kyokusui/main.py b/kyokusui/main.py
index 0b4d9e6..cc2890f 100644
--- a/kyokusui/main.py
+++ b/kyokusui/main.py
@@ -7,6 +7,7 @@
 from .model import Board, Thread, Res, Permission
 from .utils import hiroyuki
 
+
 class App(App):
     name = 'Kyokusui'
     description = '業務用便所の落書き'
diff --git a/kyokusui/templates/thread.html b/kyokusui/templates/thread.html
index 98de4cb..48b7c8e 100644
--- a/kyokusui/templates/thread.html
+++ b/kyokusui/templates/thread.html
@@ -89,7 +89,7 @@ <h5 class='modal-title'>スレッドを締めますか？</h5>
 const textarea = document.querySelector("#message")
 const image_form = document.querySelector("#image")
 const image2send = document.querySelector("#image2send")
-const ws = new WebSocket("{{ fullurl(request, "/api/v0/board/" + board._id + "/" + thread._id + "/socket", scheme="ws") }}")
+const ws = new WebSocket("{{ fullurl(request, "/api/v0/board/" + board._id + "/" + thread._id + "/socket", scheme="ws" if request.scheme == "http" else "wss") }}")
 image_form.onchange = async e => {
     const files = await Promise.all(Array.from(e.target.files).map(f => {
         return new Promise((resolve, reject) => {