diff --git a/ecs/jskult-webapp/src/controller/logout.py b/ecs/jskult-webapp/src/controller/logout.py
index 79de281c..4f30d802 100644
--- a/ecs/jskult-webapp/src/controller/logout.py
+++ b/ecs/jskult-webapp/src/controller/logout.py
@@ -22,11 +22,15 @@ def logout_view(
     reason: Optional[str] = None,
     session: Union[UserSession, None] = Depends(verify_session)
 ):
+    # どういうルートでログインしたかを判断するため、refererを取得
+    referer = request.headers.get('referer', '')
+
     redirect_to = '/login/userlogin'
     link_text = 'MeDaCA機能メニューへ'
-    if session is not None and session.user_flg == '1':
+    if (session is not None and session.user_flg == '1') or referer.endswith('maintlogin'):
         redirect_to = '/login/maintlogin'
         link_text = 'Login画面に戻る'
+
     logout = LogoutViewModel()
     logout.redirect_to = redirect_to
     logout.reason = constants.LOGOUT_REASON_MESSAGE_MAP.get(reason, '')