diff --git a/packages/playwright/src/matchers/matchers.ts b/packages/playwright/src/matchers/matchers.ts
index f7c68b4544f91..dd159a7f5e5a1 100644
--- a/packages/playwright/src/matchers/matchers.ts
+++ b/packages/playwright/src/matchers/matchers.ts
@@ -181,7 +181,7 @@ export function toHaveAccessibleDescription(
   options?: { timeout?: number, ignoreCase?: boolean },
 ) {
   return toMatchText.call(this, 'toHaveAccessibleDescription', locator, 'Locator', async (isNot, timeout) => {
-    const expectedText = serializeExpectedTextValues([expected], { ignoreCase: options?.ignoreCase });
+    const expectedText = serializeExpectedTextValues([expected], { ignoreCase: options?.ignoreCase, normalizeWhiteSpace: true });
     return await locator._expect('to.have.accessible.description', { expectedText, isNot, timeout });
   }, expected, options);
 }
@@ -193,7 +193,7 @@ export function toHaveAccessibleName(
   options?: { timeout?: number, ignoreCase?: boolean },
 ) {
   return toMatchText.call(this, 'toHaveAccessibleName', locator, 'Locator', async (isNot, timeout) => {
-    const expectedText = serializeExpectedTextValues([expected], { ignoreCase: options?.ignoreCase });
+    const expectedText = serializeExpectedTextValues([expected], { ignoreCase: options?.ignoreCase, normalizeWhiteSpace: true });
     return await locator._expect('to.have.accessible.name', { expectedText, isNot, timeout });
   }, expected, options);
 }
diff --git a/tests/page/expect-misc.spec.ts b/tests/page/expect-misc.spec.ts
index 2242a5537822c..f99ac12376089 100644
--- a/tests/page/expect-misc.spec.ts
+++ b/tests/page/expect-misc.spec.ts
@@ -431,6 +431,9 @@ test('toHaveAccessibleName', async ({ page }) => {
   await expect(page.locator('div')).toHaveAccessibleName(/ell\w/);
   await expect(page.locator('div')).not.toHaveAccessibleName(/hello/);
   await expect(page.locator('div')).toHaveAccessibleName(/hello/, { ignoreCase: true });
+
+  await page.setContent(`<button>foo&nbsp;bar\nbaz</button>`);
+  await expect(page.locator('button')).toHaveAccessibleName('foo bar baz');
 });
 
 test('toHaveAccessibleDescription', async ({ page }) => {
@@ -443,6 +446,12 @@ test('toHaveAccessibleDescription', async ({ page }) => {
   await expect(page.locator('div')).toHaveAccessibleDescription(/ell\w/);
   await expect(page.locator('div')).not.toHaveAccessibleDescription(/hello/);
   await expect(page.locator('div')).toHaveAccessibleDescription(/hello/, { ignoreCase: true });
+
+  await page.setContent(`
+    <div role="button" aria-describedby="desc"></div>
+    <span id="desc">foo&nbsp;bar\nbaz</span>
+  `);
+  await expect(page.locator('div')).toHaveAccessibleDescription('foo bar baz');
 });
 
 test('toHaveRole', async ({ page }) => {