[commands] Fix NameError when given an invalid prefix.

Closes #775
8 years ago · e24914be0b
1 changed files with 1 additions and 1 deletions
--- a/discord/ext/commands/bot.py
+++ b/discord/ext/commands/bot.py
@ -809,7 +809,7 @@ class BotBase(GroupMixin):
            ret = [p for p in ret if p]
        if not ret:
-            raise ClientException('invalid prefix (could be an empty string, empty list, or None)')
+            raise discord.ClientException('invalid prefix (could be an empty string, empty list, or None)')
        return ret