diff --git a/src/dom/__tests__/node-belongs.test.ts b/src/dom/__tests__/node-belongs.test.ts
index 950597c..1109a4d 100644
--- a/src/dom/__tests__/node-belongs.test.ts
+++ b/src/dom/__tests__/node-belongs.test.ts
@@ -1,7 +1,7 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-import { nodeBelongs } from '../node-belongs';
+import nodeBelongs from '../node-belongs';
 
 describe('nodeBelongs', () => {
   let div: HTMLDivElement;
diff --git a/src/dom/index.ts b/src/dom/index.ts
index b3975e2..8271aff 100644
--- a/src/dom/index.ts
+++ b/src/dom/index.ts
@@ -3,3 +3,4 @@
 
 export { default as findUpUntil } from './find-up-until';
 export { default as nodeContains } from './node-contains';
+export { default as nodeBelongs } from './node-belongs';
diff --git a/src/dom/node-belongs.ts b/src/dom/node-belongs.ts
index 5ffc3ba..e9fab71 100644
--- a/src/dom/node-belongs.ts
+++ b/src/dom/node-belongs.ts
@@ -12,7 +12,7 @@ import { isHTMLElement, isNode } from './element-types';
  * @param container Container node
  * @param target Node that is checked to be a descendant of the container
  */
-export function nodeBelongs(container: Node | null, target: Node | EventTarget | null): boolean {
+export default function nodeBelongs(container: Node | null, target: Node | EventTarget | null): boolean {
   if (!isNode(target)) {
     return false;
   }
diff --git a/src/internal/index.ts b/src/internal/index.ts
index 02b06eb..9c5abd0 100644
--- a/src/internal/index.ts
+++ b/src/internal/index.ts
@@ -28,3 +28,11 @@ export {
 export { useFocusVisible } from './focus-visible';
 export { KeyCode, isModifierKey } from './keycode';
 export { getGlobalFlag } from './global-flags';
+export {
+  SingleTabStopNavigationAPI,
+  SingleTabStopNavigationProvider,
+  useSingleTabStopNavigation,
+} from './single-tab-stop';
+export { isFocusable, getAllFocusables, getFirstFocusable, getLastFocusable } from './focus-lock-utils/utils';
+export { default as handleKey } from './utils/handle-key';
+export { default as circleIndex } from './utils/circle-index';
diff --git a/src/internal/single-tab-stop/index.tsx b/src/internal/single-tab-stop/index.tsx
index 67e85be..808dade 100644
--- a/src/internal/single-tab-stop/index.tsx
+++ b/src/internal/single-tab-stop/index.tsx
@@ -11,7 +11,7 @@ import React, {
   useState,
 } from 'react';
 
-import { nodeBelongs } from '../../dom/node-belongs';
+import nodeBelongs from '../../dom/node-belongs';
 
 export type FocusableChangeHandler = (isFocusable: boolean) => void;
 
diff --git a/src/internal/utils/circle-index.ts b/src/internal/utils/circle-index.ts
index ca436cd..155ddb7 100644
--- a/src/internal/utils/circle-index.ts
+++ b/src/internal/utils/circle-index.ts
@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 // Returns given index if it is in range or the opposite range boundary otherwise.
-export function circleIndex(index: number, [from, to]: [number, number]): number {
+export default function circleIndex(index: number, [from, to]: [number, number]): number {
   if (index < from) {
     return to;
   }