diff --git a/jarvis/cogs/admin/mute.py b/jarvis/cogs/admin/mute.py
index 822bbc4..0cf301c 100644
--- a/jarvis/cogs/admin/mute.py
+++ b/jarvis/cogs/admin/mute.py
@@ -207,6 +207,10 @@ class MuteCog(ModcaseCog):
             await ctx.send("User is not muted", ephemeral=True)
             return
 
+        if not await ctx.guild.fetch_member(user.id):
+            await ctx.send("User must be in guild", ephemeral=True)
+            return
+
         await user.timeout(communication_disabled_until=datetime.now(tz=timezone.utc))
 
         embed = build_embed(