diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index f4a85ee1a00f109f2ebf8fef7c8f660da2d1f3ce..0bb26f522c71300b1da6bcb4cfb0c6b69ad027d0 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -5828,7 +5828,7 @@ function getImageFileNameForSize($file, $extName, $extImgTarget='')
  */
 function getAdvancedPreviewUrl($modulepart, $relativepath)
 {
-    global $conf;
+    global $conf, $langs;
 
     if (empty($conf->use_javascript_ajax)) return '';
 
@@ -5837,7 +5837,7 @@ function getAdvancedPreviewUrl($modulepart, $relativepath)
     //$mime_preview[]='archive';
     $num_mime = array_search(dol_mimetype($relativepath, '', 1), $mime_preview);
 
-    if ($num_mime !== false) return 'javascript:document_preview(\''.dol_escape_js(DOL_URL_ROOT.'/document.php?modulepart='.$modulepart.'&attachment=0&file='.$relativepath).'\', \''.dol_mimetype($relativepath).'\', \''.dol_escape_js('Preview').'\')';
+    if ($num_mime !== false) return 'javascript:document_preview(\''.dol_escape_js(DOL_URL_ROOT.'/document.php?modulepart='.$modulepart.'&attachment=0&file='.$relativepath).'\', \''.dol_mimetype($relativepath).'\', \''.dol_escape_js($langs->trans('Preview')).'\')';
     else return '';
 }