diff --git a/htdocs/comm/mailing/class/advtargetemailing.class.php b/htdocs/comm/mailing/class/advtargetemailing.class.php
index a36077f94db16..b0d970248eb3a 100644
--- a/htdocs/comm/mailing/class/advtargetemailing.class.php
+++ b/htdocs/comm/mailing/class/advtargetemailing.class.php
@@ -474,7 +474,7 @@ function query_thirdparty($arrayquery)
 				$sql.= " LEFT OUTER JOIN " . MAIN_DB_PREFIX . "societe_commerciaux as saleman ON saleman.fk_soc=t.rowid ";
 			}
 			if (array_key_exists('cust_categ', $arrayquery)) {
-				$sql.= " LEFT OUTER JOIN " . MAIN_DB_PREFIX . "categorie_societe as custcateg ON custcateg.fk_societe=t.rowid ";
+				$sql.= " LEFT OUTER JOIN " . MAIN_DB_PREFIX . "categorie_societe as custcateg ON custcateg.fk_soc=t.rowid ";
 			}
 
 			if (!empty($arrayquery['cust_name'])) {