diff --git a/htdocs/projet/tasks/list.php b/htdocs/projet/tasks/list.php
index 5b60e1ef3bc..113f02670f0 100644
--- a/htdocs/projet/tasks/list.php
+++ b/htdocs/projet/tasks/list.php
@@ -47,7 +47,7 @@ $search_categ = GETPOST("search_categ", 'alpha');
 $search_project = GETPOST('search_project');
 
 $search_projectstatus = GETPOST('search_projectstatus');
-if (!isset($search_projectstatus) || $search_projectstatus == '')
+if (!isset($search_projectstatus) || $search_projectstatus === '')
 {
 	if ($search_all != '') $search_projectstatus = -1;
 	else $search_projectstatus = 1;