diff --git a/src/mutable.js b/src/mutable.js
index <HASH>..<HASH> 100644
--- a/src/mutable.js
+++ b/src/mutable.js
@@ -1,4 +1,4 @@
-import ItemSelection from './immutable'
+import { ItemSelection } from './immutable'
 
 class MutableItemSelection extends ItemSelection {
   set (selection, lastIndex) {
extend MutableItemSelection from superclass instead of factory function