diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 120191f8a51..43956f87b1a 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -2196,9 +2196,9 @@ function dolPrintText($s)
  * To output a text inside an attribute, you can use dolPrintHTMLForAttribute() or dolPrintHTMLForTextArea() inside a textarea
  * With dolPrintHTML(), only content not already in HTML is encoded with HTML.
  *
- * @param	string	$s				String to print
- * @param	int		$allowiframe	Allow iframe tags
- * @return	string					String ready for HTML output (sanitized and escape)
+ * @param	int|float|string	$s				String to print
+ * @param	int					$allowiframe	Allow iframe tags
+ * @return	string								String ready for HTML output (sanitized and escape)
  * @see dolPrintHTMLForAttribute(), dolPrintHTMLFortextArea(), dolPrintText()
  */
 function dolPrintHTML($s, $allowiframe = 0)
@@ -2208,7 +2208,7 @@ function dolPrintHTML($s, $allowiframe = 0)
 
 	// dol_htmlentitiesbr encode all chars except "'" if string is not already HTML, but
 	// encode only special char like é but not &, <, >, ", ' if already HTML.
-	$stringWithEntitesForSpecialChar = dol_htmlentitiesbr($s);
+	$stringWithEntitesForSpecialChar = dol_htmlentitiesbr((string) $s);
 
 	return dol_escape_htmltag(dol_htmlwithnojs(dol_string_onlythesehtmltags($stringWithEntitesForSpecialChar, 1, 1, 1, $allowiframe)), 1, 1, 'common', 0, 1);
 }