diff --git a/htdocs/core/modules/modSociete.class.php b/htdocs/core/modules/modSociete.class.php
index d10e9747d91..6cf0a6c0278 100644
--- a/htdocs/core/modules/modSociete.class.php
+++ b/htdocs/core/modules/modSociete.class.php
@@ -313,7 +313,7 @@ class modSociete extends DolibarrModules
 		$this->export_sql_end[$r]  =' FROM '.MAIN_DB_PREFIX.'socpeople as c';
 		$this->export_sql_end[$r] .=' LEFT JOIN '.MAIN_DB_PREFIX.'societe as s ON c.fk_soc = s.rowid';
 		$this->export_sql_end[$r] .=' LEFT JOIN '.MAIN_DB_PREFIX.'societe_extrafields as extrasoc ON s.rowid = extrasoc.fk_object';
-		if(!$user->rights->societe->client->voir) $this->export_sql_end[$r] .=' LEFT JOIN '.MAIN_DB_PREFIX.'societe_commerciaux as sc ON sc.fk_soc = s.rowid';
+		if (is_object($user) && empty($user->rights->societe->client->voir)) $this->export_sql_end[$r] .=' LEFT JOIN '.MAIN_DB_PREFIX.'societe_commerciaux as sc ON sc.fk_soc = s.rowid';
 		$this->export_sql_end[$r] .=' LEFT JOIN '.MAIN_DB_PREFIX.'c_departements as d ON c.fk_departement = d.rowid';
 		$this->export_sql_end[$r] .=' LEFT JOIN '.MAIN_DB_PREFIX.'c_country as co ON c.fk_pays = co.rowid';
 		$this->export_sql_end[$r] .=' LEFT JOIN '.MAIN_DB_PREFIX.'socpeople_extrafields as extra ON extra.fk_object = c.rowid';