diff --git a/src/vs/base/browser/ui/tree/abstractTree.ts b/src/vs/base/browser/ui/tree/abstractTree.ts
index 16d9f2d0ae6e26172b300fd17b9465b7c6daeedb..904702b3e625c6169fd0efaeebf69b650a05604f 100644
--- a/src/vs/base/browser/ui/tree/abstractTree.ts
+++ b/src/vs/base/browser/ui/tree/abstractTree.ts
@@ -11,9 +11,8 @@ import { append, $, toggleClass } from 'vs/base/browser/dom';
 import { Event, Relay, chain } from 'vs/base/common/event';
 import { StandardKeyboardEvent } from 'vs/base/browser/keyboardEvent';
 import { KeyCode } from 'vs/base/common/keyCodes';
-import { ITreeModel, ITreeNode, ITreeRenderer } from 'vs/base/browser/ui/tree/tree';
+import { ITreeModel, ITreeNode, ITreeRenderer, ITreeModelOptions } from 'vs/base/browser/ui/tree/tree';
 import { ISpliceable } from 'vs/base/common/sequence';
-import { IIndexTreeModelOptions } from 'vs/base/browser/ui/tree/indexTreeModel';
 
 export function createComposedTreeListOptions<T, R extends { element: T }>(options?: IListOptions<T>): IListOptions<R> {
 	if (!options) {
@@ -168,7 +167,7 @@ function isInputElement(e: HTMLElement): boolean {
 	return e.tagName === 'INPUT' || e.tagName === 'TEXTAREA';
 }
 
-export interface ITreeOptions<T, TFilterData = void> extends IListOptions<T>, IIndexTreeModelOptions<T, TFilterData> { }
+export interface ITreeOptions<T, TFilterData = void> extends IListOptions<T>, ITreeModelOptions<T, TFilterData> { }
 export interface ITreeEvent<T, TFilterData> extends IListEvent<ITreeNode<T, TFilterData>> { }
 export interface ITreeContextMenuEvent<T, TFilterData> extends IListContextMenuEvent<ITreeNode<T, TFilterData>> { }
 
diff --git a/src/vs/base/browser/ui/tree/indexTreeModel.ts b/src/vs/base/browser/ui/tree/indexTreeModel.ts
index 695a145e421cfba585933302e83bd266a2ec2add..8e0a5a7842e9bca0f7d80ed50b4ce393170ecfde 100644
--- a/src/vs/base/browser/ui/tree/indexTreeModel.ts
+++ b/src/vs/base/browser/ui/tree/indexTreeModel.ts
@@ -7,7 +7,7 @@ import { ISpliceable } from 'vs/base/common/sequence';
 import { Iterator, ISequence } from 'vs/base/common/iterator';
 import { Emitter, Event, EventBufferer } from 'vs/base/common/event';
 import { tail2 } from 'vs/base/common/arrays';
-import { ITreeFilterDataResult, TreeVisibility, ITreeFilter, ITreeModel, ITreeNode, ITreeElement } from 'vs/base/browser/ui/tree/tree';
+import { ITreeFilterDataResult, TreeVisibility, ITreeFilter, ITreeModel, ITreeNode, ITreeElement, ITreeModelOptions } from 'vs/base/browser/ui/tree/tree';
 
 interface IMutableTreeNode<T, TFilterData> extends ITreeNode<T, TFilterData> {
 	readonly parent: IMutableTreeNode<T, TFilterData> | undefined;
@@ -38,10 +38,6 @@ function getVisibleState(visibility: boolean | TreeVisibility): TreeVisibility {
 	}
 }
 
-export interface IIndexTreeModelOptions<T, TFilterData> {
-	filter?: ITreeFilter<T, TFilterData>;
-}
-
 export class IndexTreeModel<T, TFilterData = void> implements ITreeModel<T, TFilterData, number[]> {
 
 	private root: IMutableTreeNode<T, TFilterData> = {
@@ -66,7 +62,7 @@ export class IndexTreeModel<T, TFilterData = void> implements ITreeModel<T, TFil
 
 	private filter?: ITreeFilter<T, TFilterData>;
 
-	constructor(private list: ISpliceable<ITreeNode<T, TFilterData>>, options: IIndexTreeModelOptions<T, TFilterData> = {}) {
+	constructor(private list: ISpliceable<ITreeNode<T, TFilterData>>, options: ITreeModelOptions<T, TFilterData> = {}) {
 		this.filter = options.filter;
 	}
 
diff --git a/src/vs/base/browser/ui/tree/objectTreeModel.ts b/src/vs/base/browser/ui/tree/objectTreeModel.ts
index 54d40157a641e15ee24d6df026463ffa4162f0ee..3d0a69872f48c3685d773e5e35f62f6472c9b660 100644
--- a/src/vs/base/browser/ui/tree/objectTreeModel.ts
+++ b/src/vs/base/browser/ui/tree/objectTreeModel.ts
@@ -7,11 +7,9 @@
 
 import { ISpliceable } from 'vs/base/common/sequence';
 import { Iterator, ISequence } from 'vs/base/common/iterator';
-import { IndexTreeModel, IIndexTreeModelOptions } from 'vs/base/browser/ui/tree/indexTreeModel';
+import { IndexTreeModel } from 'vs/base/browser/ui/tree/indexTreeModel';
 import { Event } from 'vs/base/common/event';
-import { ITreeModel, ITreeNode, ITreeElement } from 'vs/base/browser/ui/tree/tree';
-
-export interface IObjectTreeModelOptions<T, TFilterData> extends IIndexTreeModelOptions<T, TFilterData> { }
+import { ITreeModel, ITreeNode, ITreeElement, ITreeModelOptions } from 'vs/base/browser/ui/tree/tree';
 
 export class ObjectTreeModel<T extends NonNullable<any>, TFilterData = void> implements ITreeModel<T, TFilterData, T> {
 
@@ -23,7 +21,7 @@ export class ObjectTreeModel<T extends NonNullable<any>, TFilterData = void> imp
 
 	get size(): number { return this.nodes.size; }
 
-	constructor(list: ISpliceable<ITreeNode<T, TFilterData>>, options: IObjectTreeModelOptions<T, TFilterData> = {}) {
+	constructor(list: ISpliceable<ITreeNode<T, TFilterData>>, options: ITreeModelOptions<T, TFilterData> = {}) {
 		this.model = new IndexTreeModel(list, options);
 		this.onDidChangeCollapseState = this.model.onDidChangeCollapseState;
 		this.onDidChangeRenderNodeCount = this.model.onDidChangeRenderNodeCount;
diff --git a/src/vs/base/browser/ui/tree/tree.ts b/src/vs/base/browser/ui/tree/tree.ts
index 8c8956f0eb575d56cfcc71834738b49886b768bc..f3fd7701877a5bb696918783e2419634e0c03289 100644
--- a/src/vs/base/browser/ui/tree/tree.ts
+++ b/src/vs/base/browser/ui/tree/tree.ts
@@ -109,4 +109,8 @@ export interface ITreeModel<T, TFilterData, TRef> {
 export interface ITreeRenderer<T, TFilterData, TTemplateData> extends IListRenderer<ITreeNode<T, TFilterData>, TTemplateData> {
 	renderTwistie?(element: T, twistieElement: HTMLElement): boolean;
 	onDidChangeTwistieState?: Event<T>;
+}
+
+export interface ITreeModelOptions<T, TFilterData> {
+	filter?: ITreeFilter<T, TFilterData>;
 }
\ No newline at end of file