diff --git a/htdocs/admin/barcode.php b/htdocs/admin/barcode.php
index 871add6cfb5..227815a7708 100644
--- a/htdocs/admin/barcode.php
+++ b/htdocs/admin/barcode.php
@@ -226,7 +226,7 @@ print '<td>&nbsp;</td>';
 print '</tr>';
 
 // Chemin du binaire genbarcode sous linux
-if (!isset($_ENV['windir']) && !file_exists($_ENV['windir']))
+if (! isset($_SERVER['WINDIR']))
 {
 	$var=!$var;
 	print '<form method="post" action="'.$_SERVER["PHP_SELF"].'">';
diff --git a/htdocs/includes/modules/barcode/phpbarcode.modules.php b/htdocs/includes/modules/barcode/phpbarcode.modules.php
index 942f0bc61fd..efa8d29cbcd 100644
--- a/htdocs/includes/modules/barcode/phpbarcode.modules.php
+++ b/htdocs/includes/modules/barcode/phpbarcode.modules.php
@@ -93,7 +93,7 @@ class modPhpbarcode extends ModeleBarCode
      */
 	function buildBarCode($code,$encoding,$readable='Y')
 	{
-		global $_GET,$_ENV,$_SERVER;
+		global $_GET,$_SERVER;
 		global $conf;
 		global $genbarcode_loc, $bar_color, $bg_color, $text_color, $font_loc;