diff --git a/core.py b/core.py
index e7ddfa6..59558df 100644
--- a/core.py
+++ b/core.py
@@ -16,7 +16,7 @@ from state import command_locks
 
 
 async def on_message(message):
-    if not message.content.startswith(constants.PREFIX):
+    if not message.content.startswith(constants.PREFIX) or message.author.bot:
         return
 
     tokens = commands.tokenize(message.content)