diff --git a/js/roi/ROIManager.js b/js/roi/ROIManager.js
index b5d058170..c6853eff7 100644
--- a/js/roi/ROIManager.js
+++ b/js/roi/ROIManager.js
@@ -4,6 +4,7 @@ import {getElementVerticalDimension} from "../util/igvUtils.js"
 import {inferFileFormat} from "../util/fileFormatUtils.js"
 import ROIMenu from "./ROIMenu.js"
 import ROITable from "./ROITable.js"
+import {createRegionKey, parseRegionKey} from './roiUtils.js'
 import {FileUtils} from "../../node_modules/igv-utils/src/index.js"
 
 class ROIManager {