diff --git a/static/index.js b/static/index.js
index f1e8fe9..b838a7d 100644
--- a/static/index.js
+++ b/static/index.js
@@ -156,5 +156,13 @@ function singleCalcSpinner(sender) {
     sender.disabled = true;
     sender.addEventListener('htmx:afterRequest', function () {
         sender.disabled = false;
+        const homeClan = document.getElementById('home-clan');
+        const oppClan = document.getElementById('opponent-clan');
+        if (homeClan.selectedIndex === oppClan.selectedIndex) {
+            if (sender.parentElement.parentElement.id === 'home-player-list')
+                oppClan.dispatchEvent(new Event('change'));
+            else
+                homeClan.dispatchEvent(new Event('change'));
+        }
     }, {once: true});
 }
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