diff --git a/hgext3rd/copytrace.py b/hgext3rd/copytrace.py
--- a/hgext3rd/copytrace.py
+++ b/hgext3rd/copytrace.py
@@ -39,7 +39,6 @@
     commands,
     copies as copiesmod,
     dispatch,
-    error,
     extensions,
     filemerge,
     node,