diff --git a/Robocop.py b/Robocop.py
index 9f93e89..f79ad0b 100755
--- a/Robocop.py
+++ b/Robocop.py
@@ -149,7 +149,7 @@ async def on_message(message):
     if message.author.bot:
         return
 
-    if message.guild.id not in config.guild_whitelist:
+    if (message.guild) and (message.guild.id not in config.guild_whitelist):
         return
 
     ctx = await bot.get_context(message)