diff --git a/htdocs/fourn/class/fournisseur.commande.class.php b/htdocs/fourn/class/fournisseur.commande.class.php
index 020b551f99a..156ec3971ef 100644
--- a/htdocs/fourn/class/fournisseur.commande.class.php
+++ b/htdocs/fourn/class/fournisseur.commande.class.php
@@ -3894,7 +3894,7 @@ class CommandeFournisseurLigne extends CommonOrderLine
 			return -1;
 		}
 
-		$sql1 = 'UPDATE '.MAIN_DB_PREFIX."commandedet SET fk_commandefourndet = NULL WHERE rowid=".((int) $this->id);
+		$sql1 = 'UPDATE '.MAIN_DB_PREFIX."commandedet SET fk_commandefourndet = NULL WHERE fk_commandefourndet=".((int) $this->id);
 		$resql = $this->db->query($sql1);
 		if (!$resql) {
 			$this->db->rollback();