diff --git a/htdocs/fourn/facture/document.php b/htdocs/fourn/facture/document.php
index 6926770bd91..180e72e8262 100644
--- a/htdocs/fourn/facture/document.php
+++ b/htdocs/fourn/facture/document.php
@@ -51,9 +51,7 @@ $result = restrictedArea($user, 'fournisseur', $id, 'facture_fourn', 'facture');
 $sortfield = GETPOST("sortfield",'alpha');
 $sortorder = GETPOST("sortorder",'alpha');
 $page = GETPOST("page",'int');
-if ($page == -1) {
-    $page = 0;
-}
+if (empty($page) || $page == -1) { $page = 0; }     // If $page is not defined, or '' or -1
 $offset = $conf->liste_limit * $page;
 $pageprev = $page - 1;
 $pagenext = $page + 1;