diff --git a/usr/local/www/system_certmanager.php b/usr/local/www/system_certmanager.php
index e1f5061041..771e800c11 100644
--- a/usr/local/www/system_certmanager.php
+++ b/usr/local/www/system_certmanager.php
@@ -256,7 +256,7 @@ if ($_POST) {
 					$altnames[$entry][$field] = $value;
 				}
 			}
-			$pconfig['aliases']['item'] = $aliases;
+			$pconfig['altnames']['item'] = $altnames;
 
 			/* Input validation for subjectAltNames */
 			foreach ($altnames as $idx => $altname) {
@@ -1224,4 +1224,4 @@ internalca_change();
 </script>
 
 </body>
-</html>
\ No newline at end of file
+</html>