diff --git a/dev/test/testutf.php b/dev/test/testutf.php
index 2438b00cda0..f08617e4166 100644
--- a/dev/test/testutf.php
+++ b/dev/test/testutf.php
@@ -1,9 +1,13 @@
 <?php
 // This source file must be UTF-8 encoded
 
-$filename='filewithé';
+$filename='filewithé';
 
 print 'Test to create a file on disk'."\n";
+print 'ENV[LANG]='.$_ENV["LANG"]."\n";
+print 'ENV[LANGUAGE]='.$_ENV["LANGUAGE"]."\n";
+
+// Si LANG contient UTF8, system en UTF8, pas de conversion requise pour fopen
 $s=fopen('/tmp/'.$filename,'w');
 fclose($s);