diff --git a/discord/abc.py b/discord/abc.py
index 863d6d76..a4cdae5a 100644
--- a/discord/abc.py
+++ b/discord/abc.py
@@ -25,6 +25,7 @@ DEALINGS IN THE SOFTWARE.
 """
 
 import abc
+import copy
 import asyncio
 
 from collections import namedtuple