diff --git a/htdocs/comm/propal.php b/htdocs/comm/propal.php
index e05c5a63dd9..b818e2cf440 100644
--- a/htdocs/comm/propal.php
+++ b/htdocs/comm/propal.php
@@ -1184,7 +1184,7 @@ $form = new Form($db);
 $formother = new FormOther($db);
 $formfile = new FormFile($db);
 $formpropal = new FormPropal($db);
-$formmargin = new FormMargin($this->db);
+$formmargin = new FormMargin($db);
 $companystatic = new Societe($db);
 if (! empty($conf->projet->enabled)) { $formproject = new FormProjets($db); }