diff --git a/htdocs/categories/categorie.class.php b/htdocs/categories/categorie.class.php
index 4e5637006f1..ee173e719c0 100644
--- a/htdocs/categories/categorie.class.php
+++ b/htdocs/categories/categorie.class.php
@@ -462,11 +462,8 @@ class Categorie
     $sql = "SELECT count(c.rowid)";
     $sql.= " FROM ".MAIN_DB_PREFIX."categorie as c, ".MAIN_DB_PREFIX."categorie_association as ca";
     $sql.= " WHERE c.label = '".$label."'";
-    if ($catmere!='' && $catmere > 0)
-    {
     $sql.= " AND c.rowid = ca.fk_categorie_fille";
     $sql.= " AND ca.fk_categorie_mere = '".$catmere."'";
-    }
 
     $res  = $this->db->query ($sql);
     $res  = $this->db->fetch_array ($res);