diff --git a/web/backend/main.py b/web/backend/main.py
index 8929759..48b5af1 100644
--- a/web/backend/main.py
+++ b/web/backend/main.py
@@ -205,7 +205,8 @@ def auth_required():
         @wraps(f)
         def decorated(*args, **kwargs):
             if not "login" in session:
-                return redirect(f"{config['base-dir']}login?return={request.url}")
+                request_url = f"{config['base-dir']}{request.url}".replace("//", "/")
+                return redirect(f"{config['base-dir']}login?return={request_url}")
             else:
                 return f(*args, **kwargs)
         return decorated
@@ -243,7 +244,7 @@ def kioubit_auth():
 @app.route("/logout")
 def logout():
     session.clear()
-    return redirect("/")
+    return redirect(config["base-dir"])
 
 
 @app.route("/login", methods=["GET", "POST"])
diff --git a/web/frontend/login.html b/web/frontend/login.html
index 739616a..d3addca 100644
--- a/web/frontend/login.html
+++ b/web/frontend/login.html
@@ -11,7 +11,7 @@
     type="hidden"
     id="return"
     name="return"
-    value='{{config["domain"]+"/api/auth/kverify"}}'
+    value='{{config["domain"]+config["base-dir"]+"api/auth/kverify"}}'
   />
   <button
     type="submit"