diff --git a/htdocs/includes/modules/facture/pdf_bernique.modules.php b/htdocs/includes/modules/facture/pdf_bernique.modules.php
index 53789920c31..940729744de 100644
--- a/htdocs/includes/modules/facture/pdf_bernique.modules.php
+++ b/htdocs/includes/modules/facture/pdf_bernique.modules.php
@@ -51,6 +51,7 @@ class pdf_bernique extends ModelePDFFactures  {
         $this->description = $langs->trans('PDFBerniqueDescription');
 
         // Dimension page pour format A4
+        $this->type = 'pdf';
         $this->page_largeur = 210;
         $this->page_hauteur = 297;
         $this->format = array($this->page_largeur,$this->page_hauteur);
diff --git a/htdocs/includes/modules/facture/pdf_bulot.modules.php b/htdocs/includes/modules/facture/pdf_bulot.modules.php
index 5c3dfff9ab7..18899b56db6 100644
--- a/htdocs/includes/modules/facture/pdf_bulot.modules.php
+++ b/htdocs/includes/modules/facture/pdf_bulot.modules.php
@@ -52,6 +52,7 @@ class pdf_bulot extends ModelePDFFactures {
         $this->description = $langs->trans('PDFBulotDescription');
 
         // Dimension page pour format A4
+        $this->type = 'pdf';
         $this->page_largeur = 210;
         $this->page_hauteur = 297;
         $this->format = array($this->page_largeur,$this->page_hauteur);