diff --git a/docker/Dockerfile b/docker/Dockerfile
index 6611780..315578a 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -18,6 +18,7 @@ FROM alpine:latest
 RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing/" >> /etc/apk/repositories && \
     apk --no-cache add openvpn iptables ip6tables bash python3 shadow neovim 3proxy fping tini
 COPY --from=python-builder /mop /mop
+RUN mkdir /mop/config
 COPY --from=go-builder /ovpn-lb-socks5/go-socks-lb/go-socks-lb /mop/go-socks-lb
 ENTRYPOINT ["/sbin/tini", "--"]
 CMD /mop/docker-entrypoint.sh
diff --git a/test.py b/test.py
index 4d56212..6bf22b1 100644
--- a/test.py
+++ b/test.py
@@ -125,7 +125,7 @@ class ClearCacheInstatnceHandler(tornado.web.RequestHandler):
         om.clear_cache()
 
 
-class SaveConfig(tornado.web.RequestHandler):
+class SaveInstanceHandler(tornado.web.RequestHandler):
     def get(self):
         instances = om.serialize_instance_config()
         with open(os.path.join(root), instance_config_fp, "w") as f:
@@ -144,6 +144,7 @@ def make_app():
         (r"/stop", StopInstatnceHandler),
         (r"/remove", RemoveInstatnceHandler),
         (r"/clear_cache", ClearCacheInstatnceHandler),
+        (r"/save_instance", SaveInstanceHandler),
         (r"/dashboard/(.*)", tornado.web.StaticFileHandler,
          {"path": os.path.join(root, "tabler"), "default_filename": "index.html"})
     ])