diff --git a/src/relative-time-element.ts b/src/relative-time-element.ts
index e7c9d47..c48f9f9 100644
--- a/src/relative-time-element.ts
+++ b/src/relative-time-element.ts
@@ -710,7 +710,11 @@ export class RelativeTimeElement extends HTMLElement implements Intl.DateTimeFor
     const hourCycle = this.hourCycle
     if (!this.#customTitle) {
       newTitle = this.#getFormattedTitle(date, locale, timeZone, hourCycle) || ''
-      if (newTitle && !this.noTitle && newTitle !== oldTitle) this.setAttribute('title', newTitle)
+      if (this.noTitle) {
+        this.removeAttribute('title')
+      } else if (newTitle && newTitle !== oldTitle) {
+        this.setAttribute('title', newTitle)
+      }
     }
 
     const duration = elapsedTime(date, this.precision, now)
diff --git a/test/relative-time.js b/test/relative-time.js
index 186a140..bea06d1 100644
--- a/test/relative-time.js
+++ b/test/relative-time.js
@@ -296,6 +296,38 @@ suite('relative-time', function () {
     assert.equal(el.getAttribute('title'), null)
   })
 
+  test('removes the title when no-title is added after rendering', async () => {
+    const el = document.createElement('relative-time')
+    el.setAttribute('datetime', new Date().toISOString())
+    await Promise.resolve()
+    assert.ok(el.getAttribute('title'))
+    el.setAttribute('no-title', '')
+    await Promise.resolve()
+    assert.equal(el.getAttribute('title'), null)
+  })
+
+  test('keeps a custom title when no-title is added', async () => {
+    const el = document.createElement('relative-time')
+    el.setAttribute('datetime', new Date().toISOString())
+    el.setAttribute('title', 'custom')
+    await Promise.resolve()
+    el.setAttribute('no-title', '')
+    await Promise.resolve()
+    assert.equal(el.getAttribute('title'), 'custom')
+  })
+
+  test('sets the title again when no-title is removed', async () => {
+    const el = document.createElement('relative-time')
+    el.setAttribute('datetime', new Date().toISOString())
+    await Promise.resolve()
+    const title = el.getAttribute('title')
+    el.setAttribute('no-title', '')
+    await Promise.resolve()
+    el.removeAttribute('no-title')
+    await Promise.resolve()
+    assert.equal(el.getAttribute('title'), title)
+  })
+
   test('shadowDOM reflects textContent with invalid date', async () => {
     const el = document.createElement('relative-time')
     el.textContent = 'A date string'