diff --git a/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php b/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php
index faa207cf42..8caf232066 100644
--- a/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php
+++ b/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php
@@ -525,7 +525,7 @@ protected function introspectSchema($table) {
       $index_name = substr($name, strlen($info['table']) + 1);
       $result = $this->connection->query('PRAGMA ' . $info['schema'] . '.index_info(' . $name . ')');
       foreach ($result as $row) {
-        $schema[$index['schema_key']][$index_name][] = $row->name;
+        $schema[$index['schema_key']][$index_name][$row->seqno] = $row->name;
       }
     }
     return $schema;