diff --git a/python/lsst/daf/butler/__init__.py b/python/lsst/daf/butler/__init__.py
index e40d97d505..8333081ddc 100644
--- a/python/lsst/daf/butler/__init__.py
+++ b/python/lsst/daf/butler/__init__.py
@@ -80,7 +80,6 @@
 # Do not import or lift symbols from 'server' or 'server_models'.
 # Import the registry subpackage directly for other symbols.
 from .registry import (
-    CollectionArgType,
     CollectionSearch,
     CollectionType,
     MissingCollectionError,