diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 4c9a5d4cedd..584541e94ab 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -8481,7 +8481,7 @@ function dol_nl2br($stringtoencode, $nl2brmode = 0, $forxml = false)
  *
  * @param	string	$stringtoencode				String to encode
  * @param	int     $nouseofiframesandbox		0=Default, 1=Allow use of option MAIN_SECURITY_USE_SANDBOX_FOR_HTMLWITHNOJS for html sanitizing (not yet working)
- * @param	string	$check						'restricthtmlnolink' or 'restricthtml' or 'restricthtmlallowclass' or 'restricthtmlallowlinkscript' or 'restricthtmlallowunvalid'
+ * @param	string	$check						'restricthtmlnolink' or 'restricthtml' or 'restricthtmlallowclass' or 'restricthtmlallowiframe' or 'restricthtmlallowlinkscript' or 'restricthtmlallowunvalid'
  * @return	string								HTML sanitized
  */
 function dol_htmlwithnojs($stringtoencode, $nouseofiframesandbox = 0, $check = 'restricthtml')
@@ -8607,6 +8607,8 @@ function dol_htmlwithnojs($stringtoencode, $nouseofiframesandbox = 0, $check = '
 				$out = dol_string_onlythesehtmltags($out, 0, 1, 0, 0, array(), 1, 1, 1, getDolGlobalInt("UNSECURED_restricthtmlallowlinkscript_ALLOW_PHP"));
 			} elseif ($check == 'restricthtmlallowclass' || $check == 'restricthtmlallowunvalid') {
 				$out = dol_string_onlythesehtmltags($out, 0, 0, 1);
+			} elseif ($check == 'restricthtmlallowiframe') {
+				$out = dol_string_onlythesehtmltags($out, 0, 0, 1, 1);
 			} else {
 				$out = dol_string_onlythesehtmltags($out, 0, 1, 1);
 			}