diff --git a/kdb-bot/src/modules/base/command/user_group.py b/kdb-bot/src/modules/base/command/user_group.py
index 66a9eeff..a9c92eac 100644
--- a/kdb-bot/src/modules/base/command/user_group.py
+++ b/kdb-bot/src/modules/base/command/user_group.py
@@ -96,8 +96,9 @@ class UserGroup(DiscordCommandABC):
             color=int('ef9d0d', 16)
         )
 
-        ontime = self._user_joined_voice_channel.get_user_joined_voice_channels_by_user_id(user.user_id).sum(
-            lambda join: round((join.leaved_on - join.joined_on).total_seconds() / 3600, 2))
+        ontime = self._user_joined_voice_channel.get_user_joined_voice_channels_by_user_id(user.user_id)\
+            .where(lambda x: x is not None)\
+            .sum(lambda join: round((join.leaved_on - join.joined_on).total_seconds() / 3600, 2))
 
         embed.add_field(name=self._t.transform('modules.base.user.atr.id'), value=member.id)
         embed.add_field(name=self._t.transform('modules.base.user.atr.name'), value=member.name)