diff --git a/lam/lib/lamPDF.inc b/lam/lib/lamPDF.inc
index 5301e664..de0157d8 100644
--- a/lam/lib/lamPDF.inc
+++ b/lam/lib/lamPDF.inc
@@ -70,7 +70,7 @@ class lamPDF extends UFPDF {
 			define('FPDF_FONTPATH', dirname(__FILE__) . '/font/');
 		}
 		// Call constructor of superclass
-		$this->FPDF('P','mm','A4');
+		parent::__construct('P','mm','A4');
 
 		$this->page_definitions = $page_definitions;
 
diff --git a/lam/lib/ufpdf.php b/lam/lib/ufpdf.php
index c5f305a3..598bf706 100644
--- a/lam/lib/ufpdf.php
+++ b/lam/lib/ufpdf.php
@@ -42,7 +42,7 @@ class UFPDF extends FPDF
 *******************************************************************************/
 function __construct($orientation='P',$unit='mm',$format='A4')
 {
-  FPDF::FPDF($orientation, $unit, $format);
+  parent::__construct($orientation, $unit, $format);
 }
 
 function GetStringWidth($s)