diff --git a/htdocs/commande/class/commande.class.php b/htdocs/commande/class/commande.class.php
index b1503f540d8..f8b10935f83 100644
--- a/htdocs/commande/class/commande.class.php
+++ b/htdocs/commande/class/commande.class.php
@@ -1213,7 +1213,7 @@ class Commande extends CommonOrder
 		$this->contact_id           = $object->contactid;
 		$this->ref_client           = $object->ref_client;
 
-		if (! empty($conf->global->MAIN_DISABLE_PROPAGATE_NOTES_FROM_ORIGIN))
+		if (empty($conf->global->MAIN_DISABLE_PROPAGATE_NOTES_FROM_ORIGIN))
 		{
             $this->note_private         = $object->note_private;
             $this->note_public          = $object->note_public;
diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index 77f3bd4450a..62dba82fc54 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -1143,7 +1143,7 @@ class Facture extends CommonInvoice
 		$this->contact_id           = $object->contactid;
 		$this->ref_client           = $object->ref_client;
 
-		if (! empty($conf->global->MAIN_DISABLE_PROPAGATE_NOTES_FROM_ORIGIN))
+		if (empty($conf->global->MAIN_DISABLE_PROPAGATE_NOTES_FROM_ORIGIN))
 		{
 		    $this->note_private         = $object->note_private;
             $this->note_public          = $object->note_public;