diff --git a/src/components/organisms/InteractiveGlobe2.svelte b/src/components/organisms/InteractiveGlobe2.svelte
index a25bbd5..64d608d 100644
--- a/src/components/organisms/InteractiveGlobe2.svelte
+++ b/src/components/organisms/InteractiveGlobe2.svelte
@@ -123,7 +123,7 @@
         {/each}
 
         <li class="globe__cluster">
-            <button on:click={() => popinOpen = !popinOpen} />
+            <button on:click={() => popinOpen = !popinOpen} aria-label="{popinOpen ? 'Close' : 'Open'} cluster" />
         </li>
     </ul>