diff --git a/src/OwnerCommands.py b/src/OwnerCommands.py
index 66606003a..a6fc6b666 100644
--- a/src/OwnerCommands.py
+++ b/src/OwnerCommands.py
@@ -277,7 +277,10 @@ class OwnerCommands(privmsgs.CapabilityCheckingPrivmsg):
     def cvsup(self, irc, msg, args):
         """takes no arguments
 
-        Returns the return code of 'cvs up'
+        Returns the return code of 'cvs up'.  Do note that this command blocks
+        the entire bot until the cvs up finishes.  If you're using ext
+        authentication, you'll want to type the password in on the terminal
+        the bot is running on, or he'll just freeze.
         """
         irc.reply(msg, str(os.system('cvs up')))