diff --git a/server/admin/versions.php b/server/admin/versions.php
index 7e1a769..f71f1e3 100644
--- a/server/admin/versions.php
+++ b/server/admin/versions.php
@@ -496,8 +496,16 @@ Layout::header('Versions', 'versions');
         </thead>
         <tbody>
         <?php foreach ($manifest['versions'] ?? [] as $v):
-            $zipBase    = basename(parse_url($v['download']['url'], PHP_URL_PATH) ?? '');
-            $zipExists  = in_array($zipBase, $zips, true);
+            // Format relatif depuis builds/. Pour le default channel, ça donne juste
+            // "proserve-X.Y.Z.zip" ; pour les autres channels, "asterion-vr/proserve-X.Y.Z.zip".
+            // Doit matcher exactement ce que produit $zips (cf. plus haut, glob sur 1
+            // niveau de sous-dossier max + chemin relatif normalisé en slash forward).
+            $urlPath    = parse_url($v['download']['url'] ?? '', PHP_URL_PATH) ?: '';
+            $zipPos     = strpos($urlPath, '/builds/');
+            $zipRel     = $zipPos !== false
+                ? ltrim(substr($urlPath, $zipPos + strlen('/builds/')), '/\\')
+                : basename($urlPath);
+            $zipExists  = in_array($zipRel, $zips, true);
             $hashed     = !empty($v['download']['sha256']) && !str_starts_with($v['download']['sha256'], 'REPLACE');
             $hashSkipped = strtolower((string)($v['download']['hashAlgorithm'] ?? 'sha256')) === 'none';
         ?>
@@ -513,10 +521,10 @@ Layout::header('Versions', 'versions');
                 <td>
                     <?php if ($zipExists): ?>
                         <span class="badge badge-success">présent</span>
-                        <span class="muted"><?= Layout::formatBytes($zipSizes[$zipBase] ?? 0) ?></span>
+                        <span class="muted"><?= Layout::formatBytes($zipSizes[$zipRel] ?? 0) ?></span>
                     <?php else: ?>
                         <span class="badge badge-warning">absent</span>
-                        <div class="muted" style="font-size: 11px;">attendu : <code><?= htmlspecialchars($zipBase) ?></code></div>
+                        <div class="muted" style="font-size: 11px;">attendu : <code><?= htmlspecialchars($zipRel) ?></code></div>
                     <?php endif; ?>
                 </td>
                 <td>