diff --git a/hole.py b/hole.py
index 3ed6351..0ddf018 100644
--- a/hole.py
+++ b/hole.py
@@ -10,7 +10,7 @@ from sqlalchemy.sql.expression import func
 
 from mastodon import Mastodon
 from models import db, User, Post, Comment, Attention, TagRecord, Syslog
-from utils import get_current_username, map_post, map_comment, map_syslog, check_attention, hash_name, look, get_num, tmp_token, is_admin, check_can_del, rds, RDS_KEY_POLL_OPTS, RDS_KEY_POLL_VOTES, gen_poll_dict
+from utils import get_current_username, map_post, map_comment, map_syslog, check_attention, hash_name, look, get_num, tmp_token, is_admin, check_can_del, rds, RDS_KEY_POLL_OPTS, RDS_KEY_POLL_VOTES, gen_poll_dict, name_with_tmp_limit
 
 app = Flask(__name__)
 app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///hole.db'
@@ -535,6 +535,8 @@ def edit_hot_score():
 @limiter.limit("100 / hour; 1 / 2 second")
 def add_vote():
     username = get_current_username()
+    username = name_with_tmp_limit(username)
+
     pid = request.form.get('pid', type=int)
     vote = request.form.get('vote')
 
diff --git a/utils.py b/utils.py
index eab6a70..5f84e53 100644
--- a/utils.py
+++ b/utils.py
@@ -1,6 +1,8 @@
 import hashlib
 import time
 import redis
+from datetime import date
+
 from flask import request, abort, current_app
 from models import User, Attention, Syslog
 from config import RDS_CONFIG, ADMINS, ENABLE_TMP
@@ -74,7 +76,7 @@ def map_post(p, name, mc=50):
 def gen_poll_dict(pid, name):
     if not rds.exists(RDS_KEY_POLL_OPTS % pid):
         return None
-
+    name = name_with_tmp_limit(name)
     vote = None
     answers = []
     for idx, opt in enumerate(rds.lrange(RDS_KEY_POLL_OPTS % pid, 0, -1)):
@@ -91,6 +93,11 @@ def gen_poll_dict(pid, name):
     }
 
 
+def name_with_tmp_limit(name: str) -> str:
+    return 'tmp:%s' % date.today() if name.startswith(
+        'tmp_') else name
+
+
 def map_comment(p, name):
 
     names = {p.name_hash: 0}