diff --git a/administrator/templates/atum/scss/vendor/joomla-custom-elements/joomla-alert.scss b/administrator/templates/atum/scss/vendor/joomla-custom-elements/joomla-alert.scss
index d04a43fb4efad..0352de363b87c 100644
--- a/administrator/templates/atum/scss/vendor/joomla-custom-elements/joomla-alert.scss
+++ b/administrator/templates/atum/scss/vendor/joomla-custom-elements/joomla-alert.scss
@@ -106,7 +106,7 @@
   .joomla-alert-button--close {
     position: absolute;
     top: 0;
-    right: 0;
+    inset-inline-end: 0;
     padding: .75rem .8rem;
     font-size: 2rem;
     line-height: 1rem;
@@ -121,11 +121,6 @@
       cursor: pointer;
       opacity: .75;
     }
-
-    [dir=rtl] & {
-      right: auto;
-      left: 0;
-    }
   }
 
   div {