diff --git a/src/vs/platform/list/browser/listService.ts b/src/vs/platform/list/browser/listService.ts
index 6d885405fe..b7a42fb0bb 100644
--- a/src/vs/platform/list/browser/listService.ts
+++ b/src/vs/platform/list/browser/listService.ts
@@ -658,7 +658,6 @@ abstract class ResourceNavigator<T> extends Disposable {
 			onDidChangeFocus: Event<{ browserEvent?: UIEvent }>,
 			onDidChangeSelection: Event<{ browserEvent?: UIEvent }>,
 			onDidOpen: Event<{ browserEvent?: UIEvent }>,
-			readonly openOnSingleClick?: boolean
 		},
 		options?: IResourceNavigatorOptions
 	) {
@@ -712,7 +711,7 @@ abstract class ResourceNavigator<T> extends Disposable {
 			!!(<SelectionKeyboardEvent>browserEvent).preserveFocus :
 			!isDoubleClick;
 
-		if (this.treeOrList.openOnSingleClick || isDoubleClick || isKeyboardEvent) {
+		if (this.options.openOnSingleClick || isDoubleClick || isKeyboardEvent) {
 			const sideBySide = browserEvent instanceof MouseEvent && (browserEvent.ctrlKey || browserEvent.metaKey || browserEvent.altKey);
 			this.open(preserveFocus, isDoubleClick || isMiddleClick, sideBySide, browserEvent);
 		}
@@ -739,8 +738,8 @@ export class ListResourceNavigator<T> extends ResourceNavigator<number> {
 }
 
 export class TreeResourceNavigator<T, TFilterData> extends ResourceNavigator<T> {
-	constructor(tree: WorkbenchObjectTree<T, TFilterData> | WorkbenchCompressibleObjectTree<T, TFilterData> | WorkbenchDataTree<any, T, TFilterData> | WorkbenchAsyncDataTree<any, T, TFilterData> | WorkbenchCompressibleAsyncDataTree<any, T, TFilterData>, options: IResourceNavigatorOptions = {}) {
-		super(tree, options);
+	constructor(tree: WorkbenchObjectTree<T, TFilterData> | WorkbenchCompressibleObjectTree<T, TFilterData> | WorkbenchDataTree<any, T, TFilterData> | WorkbenchAsyncDataTree<any, T, TFilterData> | WorkbenchCompressibleAsyncDataTree<any, T, TFilterData>, options?: IResourceNavigatorOptions) {
+		super(tree, { openOnSingleClick: tree.openOnSingleClick, ...(options || {}) });
 	}
 }