diff --git a/ccserver/exceptions.py b/ccserver/exceptions.py
index 55827f8311e31a523271d38f85b7c0542479666b..3caf989cc3f8aa2fae3abcd653ec64baebc5a667 100644
--- a/ccserver/exceptions.py
+++ b/ccserver/exceptions.py
@@ -60,3 +60,7 @@ class UnknownObjectError(Exception):
 
 class ElectionError(Exception):
     pass
+
+
+class CloneError(Exception):
+    pass