diff --git a/js/src/tooltip.js b/js/src/tooltip.js
index 797afb134f..936a2a66f2 100644
--- a/js/src/tooltip.js
+++ b/js/src/tooltip.js
@@ -584,6 +584,10 @@ class Tooltip extends BaseComponent {
 
     if (title || originalTitleType !== 'string') {
       this._element.setAttribute('data-bs-original-title', title || '')
+      if (!this._element.getAttribute('aria-label') && !this._element.textContent) {
+        this._element.setAttribute('aria-label', this._element.getAttribute('title') || '')
+      }
+
       this._element.setAttribute('title', '')
     }
   }