diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 64996e4e6c2..4ae71d46309 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -1448,7 +1448,7 @@ class Form
 	 *  @param	string		$htmlid			Html id to use instead of htmlname
 	 *  @param	bool		$multiple		add [] in the name of element and add 'multiple' attribut
 	 *  @param	integer		$disableifempty Set tag 'disabled' on select if there is no choice
-	 *	@return	 int						<0 if KO, Nb of contact in list if OK
+	 *	@return	 int|string					<0 if KO, HTML with select string if OK.
 	 */
 	public function selectcontacts($socid, $selected = '', $htmlname = 'contactid', $showempty = 0, $exclude = '', $limitto = '', $showfunction = 0, $moreclass = '', $options_only = false, $showsoc = 0, $forcecombo = 0, $events = array(), $moreparam = '', $htmlid = '', $multiple = false, $disableifempty = 0)
 	{