diff --git a/moderation/moderation.py b/moderation/moderation.py
index 6f16583..dd6633b 100644
--- a/moderation/moderation.py
+++ b/moderation/moderation.py
@@ -300,7 +300,7 @@ class Moderation(commands.Cog):
     async def ban(self, interaction: discord.Interaction, target: discord.User, reason: str, duration: str = None, delete_messages: Choice[int] = 0):
         """Ban a user."""
         try:
-            await interaction.guild.fetch_ban(target.id)
+            await interaction.guild.fetch_ban(target)
             await interaction.response.send_message(content=f"{target.mention} is already banned!", ephemeral=True)
             return
         except discord.errors.NotFound: