diff --git a/htdocs/core/boxes/box_graph_invoices_permonth.php b/htdocs/core/boxes/box_graph_invoices_permonth.php
index 7b797b98ab029..3848960e5e946 100644
--- a/htdocs/core/boxes/box_graph_invoices_permonth.php
+++ b/htdocs/core/boxes/box_graph_invoices_permonth.php
@@ -170,6 +170,8 @@ function loadBox($max=5)
 				$mesg = $px2->isGraphKo();
 				if (! $mesg)
 				{
+				    $langs->load("bills");
+				    
 					$px2->SetData($data2);
 					unset($data2);
 					$px2->SetPrecisionY(0);
diff --git a/htdocs/core/boxes/box_graph_invoices_supplier_permonth.php b/htdocs/core/boxes/box_graph_invoices_supplier_permonth.php
index 31d9f81125778..0931d2d05df6a 100644
--- a/htdocs/core/boxes/box_graph_invoices_supplier_permonth.php
+++ b/htdocs/core/boxes/box_graph_invoices_supplier_permonth.php
@@ -169,6 +169,8 @@ function loadBox($max=5)
 				$mesg = $px2->isGraphKo();
 				if (! $mesg)
 				{
+				    $langs->load("bills");
+				    
 					$px2->SetData($data2);
 					unset($data2);
 					$px2->SetPrecisionY(0);