diff --git a/htdocs/facture.class.php b/htdocs/facture.class.php
index 59ef610588a..6a942f67f5f 100644
--- a/htdocs/facture.class.php
+++ b/htdocs/facture.class.php
@@ -1725,11 +1725,18 @@ class Facture extends CommonObject
 	function getSommePaiement()
 	{
 		$table='paiement_facture';
-		if ($element == 'facture_fourn') $table='paiementfourn_facturefourn';
+		$field='fk_facture';
+		if ($this->element == 'facture_fourn')
+		{
+			$table='paiementfourn_facturefourn';
+			$field='fk_facturefourn';
+		}
 
 		$sql = 'SELECT sum(amount) as amount';
 		$sql.= ' FROM '.MAIN_DB_PREFIX.$table;
-		$sql.= ' WHERE fk_facture = '.$this->id;
+		$sql.= ' WHERE '.$field.' = '.$this->id;
+
+		dolibarr_syslog("Facture::getSommePaiement sql=".$sql, LOG_DEBUG);
 		$resql=$this->db->query($sql);
 		if ($resql)
 		{
diff --git a/htdocs/fourn/facture/fiche.php b/htdocs/fourn/facture/fiche.php
index b34a9b2fbb5..0ff94262eca 100644
--- a/htdocs/fourn/facture/fiche.php
+++ b/htdocs/fourn/facture/fiche.php
@@ -849,10 +849,9 @@ else
 		/*
 		 * Boutons actions
 		 */
-
 		print '<div class="tabsAction">';
 
-		if ($fac->statut <= 1 && $user->rights->fournisseur->facture->creer)
+		if ($fac->statut <= 1 && $fac->getSommePaiement() <= 0 && $user->rights->fournisseur->facture->creer)
 		{
 			if ($_GET['action'] != 'edit')
 			{
diff --git a/htdocs/fourn/facture/paiement.php b/htdocs/fourn/facture/paiement.php
index 903ad786d5c..f061b631535 100644
--- a/htdocs/fourn/facture/paiement.php
+++ b/htdocs/fourn/facture/paiement.php
@@ -319,7 +319,7 @@ if ($action == 'create' || $action == 'add_paiement')
 					{
 						// Print total
 						print '<tr class="liste_total">';
-						print '<td colspan="2" align="left">'.$langs->trans('TotalTTC').':</td>';
+						print '<td colspan="3" align="left">'.$langs->trans('TotalTTC').':</td>';
 						print '<td align="right"><b>'.price($total_ttc).'</b></td>';
 						print '<td align="right"><b>'.price($totalrecu).'</b></td>';
 						print '<td align="right"><b>'.price($total_ttc - $totalrecu).'</b></td>';