diff --git a/js/tests/unit/dropdown.spec.js b/js/tests/unit/dropdown.spec.js
index ba1d0f443..76d677a69 100644
--- a/js/tests/unit/dropdown.spec.js
+++ b/js/tests/unit/dropdown.spec.js
@@ -1006,7 +1006,7 @@ describe('Dropdown', () => {
 
       dropdownEl.addEventListener('shown.bs.dropdown', () => {
         // Popper adds this attribute when we use it
-        expect(dropdownMenu.getAttribute('x-placement')).toEqual(null)
+        expect(dropdownMenu.getAttribute('data-popper-placement')).toEqual(null)
         done()
       })