diff --git a/runhackbot.py b/runhackbot.py
index 97d05ae..83f1430 100755
--- a/runhackbot.py
+++ b/runhackbot.py
@@ -9,7 +9,7 @@ from hackbot import HackBot
 
 
 # Setup logging.
-format_string = '%(asctime)s: %(levelname)-8s %(message)s'
+format_string = '%(levelname)-8s %(message)s'
 logging.basicConfig(level=logging.WARNING, format=format_string)
 
 def setup_config(default_config, config_file, config):