diff --git a/htdocs/includes/modules/facture/pdf_oursin.modules.php b/htdocs/includes/modules/facture/pdf_oursin.modules.php
index c09285d8a73..31ee67ffbe1 100644
--- a/htdocs/includes/modules/facture/pdf_oursin.modules.php
+++ b/htdocs/includes/modules/facture/pdf_oursin.modules.php
@@ -578,20 +578,22 @@ class pdf_oursin extends ModelePDFFactures
     $pdf->SetXY($this->marges['g'],6);
 
     // Logo
-    if (defined("FAC_PDF_LOGO") && FAC_PDF_LOGO)
+    if (defined("FAC_PDF_LOGO") && FAC_PDF_LOGO) $logo=DOL_DATA_ROOT.FAC_PDF_LOGO;
+    if ($logo)  
       {
-	if (file_exists(FAC_PDF_LOGO)) 
-	  {
-	    $taille=getimagesize(FAC_PDF_LOGO);
-	    $longueur=$taille[0]/2.835;
-	    $pdf->Image(FAC_PDF_LOGO, $this->marges['g'], $this->marges['h'], 0, 24);
-	  }
-	else {
-	  $pdf->SetTextColor(200,0,0);
-	  $pdf->SetFont('Arial','B',8);
-	  $pdf->MultiCell(80, 3, $langs->trans("ErrorLogoFileNotFound",FAC_PDF_LOGO), 0, 'L');
-	  $pdf->MultiCell(80, 3, $langs->trans("ErrorGoToModuleSetup"), 0, 'L');
-	}
+				if (is_readable($logo)) 
+	  			{
+	    			$taille=getimagesize($logo);
+	    			$longueur=$taille[0]/2.835;
+	    			$pdf->Image($logo, $this->marges['g'], $this->marges['h'], 0, 24);
+	  			}
+				else 
+				{
+						$pdf->SetTextColor(200,0,0);
+	  				$pdf->SetFont('Arial','B',8);
+	  				$pdf->MultiCell(80, 3, $langs->trans("ErrorLogoFileNotFound",$logo), 0, 'L');
+	  				$pdf->MultiCell(80, 3, $langs->trans("ErrorGoToModuleSetup"), 0, 'L');
+				}
       }
     else if (defined("FAC_PDF_INTITULE"))
       {