diff --git a/htdocs/compta/facture/stats/month.php b/htdocs/compta/facture/stats/month.php
index 0c2eb0d6141..1d4090d35e4 100644
--- a/htdocs/compta/facture/stats/month.php
+++ b/htdocs/compta/facture/stats/month.php
@@ -53,7 +53,7 @@ $data = $stats->getNbByMonth($year);
 
 $filev = "/document/images/facture$year.png";
 
-$px = new Graph($data);
+$px = new BarGraph($data);
 $px->SetMaxValue($px->GetMaxValue());
 $px->SetWidth(500);
 $px->SetHeight(280);
@@ -73,7 +73,7 @@ for ($i = 1 ; $i < 13 ; $i++)
 
 $file_amount = "/document/images/factureamount$year.png";
 
-$px = new Graph($data);
+$px = new BarGraph($data);
 $px->SetYLabel("Montant");
 $px->SetMaxValue($px->GetAmountMaxValue());
 $px->SetWidth(500);
@@ -90,7 +90,7 @@ for ($i = 1 ; $i < 13 ; $i++)
   $data[$i-1] = array(strftime("%b",mktime(12,12,12,$i,1,$year)), $res[$i]);
 }
 $file_avg = "/document/images/factureaverage$year.png";
-$px = new Graph($data);
+$px = new BarGraph($data);
 $px->SetYLabel("Montant moyen");
 $px->SetMaxValue($px->GetAmountMaxValue());
 $px->SetWidth(500);