diff --git a/wp-admin/includes/template.php b/wp-admin/includes/template.php
index 5c5aa268d1..9a9fde27a4 100644
--- a/wp-admin/includes/template.php
+++ b/wp-admin/includes/template.php
@@ -2401,7 +2401,7 @@ function _list_meta_row( $entry, &$count ) {
 
 	$r .= "\n\t\t<div class='submit'><input name='deletemeta[{$entry['meta_id']}]' type='submit' ";
 	$r .= "class='delete:the-list:meta-{$entry['meta_id']}::_ajax_nonce=$delete_nonce deletemeta' tabindex='6' value='". esc_attr__( 'Delete' ) ."' />";
-	$r .= "\n\t\t<input name='updatemeta' type='submit' tabindex='6' value='". esc_attr__( 'Update' ) ."' class='add:the-list:meta-{$entry['meta_id']}::_ajax_nonce=$update_nonce updatemeta' /></div>";
+	$r .= "\n\t\t<input name='updatemeta' type='submit' tabindex='6' value='". esc_attr__( 'Update' ) ."' class='add:the-list:meta-{$entry['meta_id']}::_ajax_nonce-add-meta=$update_nonce updatemeta' /></div>";
 	$r .= wp_nonce_field( 'change-meta', '_ajax_nonce', false, false );
 	$r .= "</td>";