diff --git a/api/analysis.php b/api/analysis.php
index 0a9d12a..7ce143e 100644
--- a/api/analysis.php
+++ b/api/analysis.php
@@ -84,11 +84,15 @@ const MITIGATION_ABILITIES = [
 function resolveMitigations(string $buffStr, array $mitigIdMap): array {
     if ($buffStr === '') return [];
     $result = [];
+    $seen   = [];
     foreach (explode('.', $buffStr) as $idStr) {
         $id = (int)$idStr;
         if (isset($mitigIdMap[$id])) {
+            $name = $mitigIdMap[$id]['name'];
+            if (isset($seen[$name])) continue;
+            $seen[$name] = true;
             $result[] = [
-                'name'     => $mitigIdMap[$id]['name'],
+                'name'     => $name,
                 'dr'       => $mitigIdMap[$id]['dr'],
                 'buffType' => $mitigIdMap[$id]['buffType'],
             ];