diff --git a/htdocs/core/class/html.formfile.class.php b/htdocs/core/class/html.formfile.class.php
index 1d3faca93cb..acb7d5b5f2a 100644
--- a/htdocs/core/class/html.formfile.class.php
+++ b/htdocs/core/class/html.formfile.class.php
@@ -246,10 +246,10 @@ class FormFile
 					$out .= '<td>'.$options.'</td>';
 				}
 				$out .= '<td valign="middle" class="nowrap">';
-				$out .= '<input type="checkbox" '.$rename.' class="savingdocmask" name="savingdocmask" value="'.dol_escape_js($savingdocmask).'"> ';
-				$out .= '<span class="opacitymedium">';
+				$out .= '<input type="checkbox" '.$rename.' class="savingdocmask" name="savingdocmask" id="savingdocmask" value="'.dol_escape_js($savingdocmask).'"> ';
+				$out .= '<label class="opacitymedium small" for="savingdocmask">';
 				$out .= $langs->trans("SaveUploadedFileWithMask", preg_replace('/__file__/', $langs->transnoentitiesnoconv("OriginFileName"), $savingdocmask), $langs->transnoentitiesnoconv("OriginFileName"));
-				$out .= '</span>';
+				$out .= '</label>';
 				$out .= '</td>';
 				$out .= '</tr>';
 			}