diff --git a/server.js b/server.js
index 1de6151..490df12 100644
--- a/server.js
+++ b/server.js
@@ -319,10 +319,12 @@ function startRootmePoller() {
     try {
       const resp = await fetch(`https://api.www.root-me.org/auteurs/${id}`, { headers, timeout: 10000 });
       if (resp.status === 429) {
-        const retryAfter = parseInt(resp.headers.get('retry-after') || '0', 10);
+        const retryAfterRaw = resp.headers.get('retry-after');
+        const retryAfter = parseInt(retryAfterRaw || '0', 10);
         const pauseMs = (retryAfter > 0 ? retryAfter * 1000 : 5 * 60 * 1000);
         backoffUntil = Date.now() + pauseMs;
-        console.warn(`[rootme] 429 — pause ${Math.round(pauseMs / 1000)}s`);
+        const retryAfterMsg = retryAfterRaw ? `Retry-After: ${retryAfterRaw}s` : 'Retry-After: absent (défaut 5 min)';
+        console.warn(`[rootme] 429 pour id "${id}" — ${retryAfterMsg} — pause ${Math.round(pauseMs / 1000)}s`);
       } else {
         const entry = parseRootmeUser(await resp.json(), id);
         if (entry) {