diff --git a/main.py b/main.py
index 3180474..720eaaf 100644
--- a/main.py
+++ b/main.py
@@ -52,7 +52,17 @@ async def on_ready():
 
 @bot.command()
 async def grant_role(ctx, study_group_name: str):
-    author_id = ctx.author.id
+    # Check study group format
+    if not words[1].startswith('kruh-') or not words[1][5:].isdigit():
+        reply_error(ctx, 'Invalid study group format.')
+        reply(ctx, HELP_MESSAGE)
+        return False
+
+    # Check UKCO format
+    if not words[2].isdigit() or not len(words[2]) == 8:
+        reply_error(ctx, 'Invalid UKCO format.')
+        reply(ctx, HELP_MESSAGE)
+        return False
 
     for guild_id in server_ids:
         guild = bot.get_guild(guild_id)
@@ -104,17 +114,6 @@ def check_command(message):
         reply(message.channel, HELP_MESSAGE)
         return False
 
-    # Check study group format
-    if not words[1].startswith('kruh-') or not words[1][5:].isdigit():
-        reply_error(message.channel, 'Invalid study group format.')
-        reply(message.channel, HELP_MESSAGE)
-        return False
-
-    if not words[2].isdigit() or not len(words[2]) == 8:
-        reply_error(message.channel, 'Invalid UKCO format.')
-        reply(message.channel, HELP_MESSAGE)
-        return False
-
     return True