diff --git a/monitor.py b/monitor.py
index 250b8de..340067c 100644
--- a/monitor.py
+++ b/monitor.py
@@ -472,12 +472,12 @@ class Monitor(HTS):
             try:
                 if to is None:
                     if interval == 1440:
-                        url = ("https://api.bithumb.com/v1/candles/days?market=KRW-{}&count=200").format(1, symbol)
+                        url = ("https://api.bithumb.com/v1/candles/days?market=KRW-{}&count=200").format(symbol)
                     else:
                         url = ("https://api.bithumb.com/v1/candles/minutes/{}?market=KRW-{}&count=200").format(interval, symbol)
                 else:
                     if interval == 1440:
-                        url = ("https://api.bithumb.com/v1/candles/days?market=KRW-{}&count=200&to={}").format(1, symbol, to)
+                        url = ("https://api.bithumb.com/v1/candles/days?market=KRW-{}&count=200&to={}").format(symbol, to)
                     else:
                         url = ("https://api.bithumb.com/v1/candles/minutes/{}?market=KRW-{}&count=200&to={}").format(interval, symbol, to)
                 headers = {"accept": "application/json"}