diff --git a/commands/config.py b/commands/config.py
index 968892c..ea4bd18 100644
--- a/commands/config.py
+++ b/commands/config.py
@@ -8,7 +8,8 @@ def setup(bot: bot.Bot):
     @bot.slash_command(name="setfm", description="Sets your Last.fm username.")
     async def setfm(ctx: nerimity.Context, username: str = None):
         if not username:
-            await ctx.send(u.error_msg("Please provide your Last.fm username."))
+            await ctx.send(u.error_msg("Please provide your Last.fm username.\n\
+                                        usage: `/fm <your last.fm username>`"))
         else:
             try:
                 await bot.set_lastfm(ctx.author.id, username)