diff --git a/main.ts b/main.ts
index 5d27d7d..16fe1a7 100644
--- a/main.ts
+++ b/main.ts
@@ -149,7 +149,8 @@ function authMiddleware(): oak.Middleware {
     return async (ctx, next) => {
         const token = await ctx.cookies.get("Authorization");
         if (!token || !await db.sessionWhereToken(token)) {
-            ctx.response.redirect("/login.html");
+            const path = encodeURIComponent(ctx.request.url.pathname);
+            ctx.response.redirect(`/login.html?refer=${path}`);
             return;
         }
         await next();
diff --git a/public/login.js b/public/login.js
index e4474f2..5840bd2 100644
--- a/public/login.js
+++ b/public/login.js
@@ -18,6 +18,11 @@ document.querySelector("#login").onsubmit = async (event) => {
         loginErrorSpan.hidden = false;
         return;
     }
-    window.location.pathname = "/";
+    const params = new URLSearchParams(window.location.search);
+    if (!params.has("refer")) {
+        window.location.pathname = "/";
+        return;
+    }
+    window.location.pathname = decodeURIComponent(params.get("refer"));
 };