diff --git a/htdocs/product/stock/replenishorders.php b/htdocs/product/stock/replenishorders.php
index 13f7cca301f..c39f498d9b6 100644
--- a/htdocs/product/stock/replenishorders.php
+++ b/htdocs/product/stock/replenishorders.php
@@ -54,8 +54,8 @@ $search_dateday = GETPOST('search_dateday', 'int');
 $search_date = dol_mktime(0, 0, 0, $search_datemonth, $search_dateday, $search_dateyear);
 
 $limit = GETPOST('limit', 'int')?GETPOST('limit', 'int'):$conf->liste_limit;
-$sortfield = GETPOST("sortfield");
-$sortorder = GETPOST("sortorder");
+$sortfield = GETPOST("sortfield", 'alpha');
+$sortorder = GETPOST("sortorder", 'alpha');
 if (!$sortorder) $sortorder = 'DESC';
 if (!$sortfield) $sortfield = 'cf.date_creation';
 $page = GETPOST('page', 'int') ? GETPOST('page', 'int') : 0;
diff --git a/htdocs/product/stock/valo.php b/htdocs/product/stock/valo.php
index 32ffebdba76..e814bdfaac0 100644
--- a/htdocs/product/stock/valo.php
+++ b/htdocs/product/stock/valo.php
@@ -36,8 +36,8 @@ $sref=GETPOST("sref", 'alpha');
 $snom=GETPOST("snom", 'alpha');
 $sall=trim((GETPOST('search_all', 'alphanohtml')!='')?GETPOST('search_all', 'alphanohtml'):GETPOST('sall', 'alphanohtml'));
 
-$sortfield = GETPOST("sortfield");
-$sortorder = GETPOST("sortorder");
+$sortfield = GETPOST("sortfield", 'alpha');
+$sortorder = GETPOST("sortorder", 'alpha');
 if (! $sortfield) $sortfield="e.ref";
 if (! $sortorder) $sortorder="ASC";
 $page = $_GET["page"];
diff --git a/htdocs/projet/info.php b/htdocs/projet/info.php
index 7a9521c7518..c28460e1045 100644
--- a/htdocs/projet/info.php
+++ b/htdocs/projet/info.php
@@ -38,7 +38,7 @@ $action = GETPOST('action', 'aZ09');
 
 $limit = GETPOST('limit', 'int')?GETPOST('limit', 'int'):$conf->liste_limit;
 $sortfield = GETPOST("sortfield", "alpha");
-$sortorder = GETPOST("sortorder");
+$sortorder = GETPOST("sortorder", 'alpha');
 $page = GETPOST("page", 'int');
 $page = is_numeric($page) ? $page : 0;
 $page = $page == -1 ? 0 : $page;
diff --git a/htdocs/projet/list.php b/htdocs/projet/list.php
index 1eed25433db..63240e9f842 100644
--- a/htdocs/projet/list.php
+++ b/htdocs/projet/list.php
@@ -61,7 +61,7 @@ $diroutputmassaction = $conf->projet->dir_output.'/temp/massgeneration/'.$user->
 
 $limit = GETPOST('limit', 'int') ?GETPOST('limit', 'int') : $conf->liste_limit;
 $sortfield = GETPOST("sortfield", "alpha");
-$sortorder = GETPOST("sortorder");
+$sortorder = GETPOST("sortorder", 'alpha');
 $page = GETPOST("page", 'int');
 $page = is_numeric($page) ? $page : 0;
 $page = $page == -1 ? 0 : $page;
diff --git a/htdocs/ticket/agenda.php b/htdocs/ticket/agenda.php
index 68cef779261..c5ffc4b0ab8 100644
--- a/htdocs/ticket/agenda.php
+++ b/htdocs/ticket/agenda.php
@@ -42,7 +42,7 @@ $action   = GETPOST('action', 'aZ09');
 
 $limit = GETPOST('limit', 'int') ?GETPOST('limit', 'int') : $conf->liste_limit;
 $sortfield = GETPOST("sortfield", "alpha");
-$sortorder = GETPOST("sortorder");
+$sortorder = GETPOST("sortorder", 'alpha');
 $page = GETPOST("page", 'int');
 $page = is_numeric($page) ? $page : 0;
 $page = $page == -1 ? 0 : $page;
diff --git a/htdocs/ticket/messaging.php b/htdocs/ticket/messaging.php
index ee90a166b68..fd432fa6dde 100644
--- a/htdocs/ticket/messaging.php
+++ b/htdocs/ticket/messaging.php
@@ -42,7 +42,7 @@ $action   = GETPOST('action', 'aZ09');
 
 $limit = GETPOST('limit', 'int') ?GETPOST('limit', 'int') : $conf->liste_limit;
 $sortfield = GETPOST("sortfield", "alpha");
-$sortorder = GETPOST("sortorder");
+$sortorder = GETPOST("sortorder", 'alpha');
 $page = GETPOST("page", 'int');
 $page = is_numeric($page) ? $page : 0;
 $page = $page == -1 ? 0 : $page;