diff --git a/htdocs/admin/agenda_reminder.php b/htdocs/admin/agenda_reminder.php
index 27c6bbeed73..36f0c572de4 100644
--- a/htdocs/admin/agenda_reminder.php
+++ b/htdocs/admin/agenda_reminder.php
@@ -187,14 +187,14 @@ print '<td class="center">&nbsp;</td>'."\n";
 print '<td class="right">'."\n";
 
 if (empty($conf->global->AGENDA_REMINDER_BROWSER)) {
-	if (! getIsHTTPS()) {
+	if (!isHTTPS()) {
 		$langs->load("errors");
 		print img_warning($langs->trans("WarningAvailableOnlyForHTTPSServers"), '', 'valignmiddle size15x').' ';
 	}
 	print '<a class="valignmiddle" href="'.$_SERVER['PHP_SELF'].'?action=set_AGENDA_REMINDER_BROWSER&amp;token='.newToken().'">'.img_picto($langs->trans('Disabled'), 'switch_off').'</a>';
 	print '</td></tr>'."\n";
 } else {
-	if (! getIsHTTPS()) {
+	if (!isHTTPS()) {
 		$langs->load("errors");
 		print img_warning($langs->trans("WarningAvailableOnlyForHTTPSServers"), '', 'valignmiddle size15x').' ';
 	}
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 884d8eac496..33a09f541c6 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -2909,7 +2909,7 @@ function getUserRemoteIP()
  *
  * @return	boolean		True if user is using HTTPS
  */
-function getIsHTTPS()
+function isHTTPS()
 {
 	$isSecure = false;
 	if (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') {