diff --git a/api/donorbox-proxy.php b/api/donorbox-proxy.php
index 7593f7a..6ec4ba5 100644
--- a/api/donorbox-proxy.php
+++ b/api/donorbox-proxy.php
@@ -129,12 +129,12 @@ if ($campaign === null) {
 }
 
 // Compter les donateurs réguliers actifs de la campagne ciblée uniquement
-// Filtre PHP sur campaign.id (l'API plans ne supporte pas de filtre côté serveur)
 $campaign_id = $campaign['id'] ?? null;
 $recurring_count = 0;
 $plans_page = 1;
 do {
-    $plans_url = 'https://donorbox.org/api/v1/plans?per_page=100&page=' . $plans_page;
+    $plans_url = 'https://donorbox.org/api/v1/plans?per_page=100&page=' . $plans_page
+        . ($campaign_id ? '&campaign_id=' . urlencode($campaign_id) : '');
 
     $ch_plans = curl_init();
     curl_setopt_array($ch_plans, [
@@ -159,10 +159,6 @@ do {
     if (!is_array($plans)) break;
 
     foreach ($plans as $plan) {
-        // Filtrer sur l'ID de la campagne cible
-        if (($plan['campaign']['id'] ?? null) !== $campaign_id) {
-            continue;
-        }
         if (isset($plan['status']) && $plan['status'] === 'active') {
             $recurring_count++;
         }