diff --git a/inc/charger_pdf.php b/inc/charger_pdf.php
index aeec439..2ce8687 100644
--- a/inc/charger_pdf.php
+++ b/inc/charger_pdf.php
@@ -9,6 +9,7 @@ function inc_charger_pdf_dist($fichier_pdf, $contexte = [], $args = []){
 	$password = lire_config('curl_mdp');
 
 	$contexte['spipdf'] = $contexte['spipdf'] ?? $fichier_pdf ;
+	$contexte['alea'] = time();
 	$url = generer_url_public('spipdf', $contexte, true, false);
 
 	$CurlConnect = curl_init();