diff --git a/htdocs/admin/modules.php b/htdocs/admin/modules.php
index 00c8d14219e..68764be5fc5 100644
--- a/htdocs/admin/modules.php
+++ b/htdocs/admin/modules.php
@@ -79,9 +79,9 @@ $familyinfo=array(
 
 $param='';
 if ($search_keyword) $param.='&search_keyword='.urlencode($search_keyword);
-if ($search_status > -1)  $param.='&search_status='.urlencode($search_status);
-if ($search_nature > -1)  $param.='&search_nature='.urlencode($search_nature);
-if ($search_version > -1) $param.='&search_version='.urlencode($search_version);
+if ($search_status && $search_status != '-1')  $param.='&search_status='.urlencode($search_status);
+if ($search_nature && $search_nature != '-1')  $param.='&search_nature='.urlencode($search_nature);
+if ($search_version && $search_version != '-1') $param.='&search_version='.urlencode($search_version);
 
 $dirins=DOL_DOCUMENT_ROOT.'/custom';
 $urldolibarrmodules='https://www.dolistore.com/';
@@ -466,7 +466,7 @@ if ($mode == 'common')
 {
     dol_set_focus('#search_keyword');
 
-    print '<form method="GET" id="searchFormList" action="'.$_SERVER["PHP_SELF"].'">';
+    print '<form method="POST" id="searchFormList" action="'.$_SERVER["PHP_SELF"].'">';
     if ($optioncss != '') print '<input type="hidden" name="optioncss" value="'.$optioncss.'">';
     print '<input type="hidden" name="token" value="'.$_SESSION['newtoken'].'">';
     print '<input type="hidden" name="sortfield" value="'.$sortfield.'">';