diff --git a/src/vs/base/browser/ui/list/listWidget.ts b/src/vs/base/browser/ui/list/listWidget.ts
index 01bee5611f5..3783091d12b 100644
--- a/src/vs/base/browser/ui/list/listWidget.ts
+++ b/src/vs/base/browser/ui/list/listWidget.ts
@@ -396,6 +396,8 @@ const DefaultOptions: IListOptions<any> = {
 	mouseSupport: true
 };
 
+// TODO@Joao: move these utils into a SortedArray class
+
 function getContiguousRangeContaining(range: number[], value: number): number[] {
 	const index = range.indexOf(value);