diff --git a/htdocs/core/class/html.formfile.class.php b/htdocs/core/class/html.formfile.class.php
index 7f141d684b7..c14298d0142 100644
--- a/htdocs/core/class/html.formfile.class.php
+++ b/htdocs/core/class/html.formfile.class.php
@@ -944,7 +944,7 @@ class FormFile
 							$out .= '">'.img_picto($langs->trans("Delete"), 'delete').'</a>';
 						}
 						if ($printer) {
-							$out .= '<a class="marginleftonly reposition" href="'.$urlsource.(strpos($urlsource, '?') ? '&' : '?').'action=print_file&token='.newToken().'printer='.urlencode($modulepart).'&file='.urlencode($relativepath);
+							$out .= '<a class="marginleftonly reposition" href="'.$urlsource.(strpos($urlsource, '?') ? '&' : '?').'action=print_file&token='.newToken().'&printer='.urlencode($modulepart).'&file='.urlencode($relativepath);
 							$out .= ($param ? '&'.$param : '');
 							$out .= '">'.img_picto($langs->trans("PrintFile", $relativepath), 'printer.png').'</a>';
 						}