diff --git a/core/modules/migrate/src/Plugin/migrate/id_map/Sql.php b/core/modules/migrate/src/Plugin/migrate/id_map/Sql.php
index 8e4416778983d159c55070357dca1bce395abeaf..3e30634437f72a9b2fc402fd9e00e0ca4b7b23ce 100644
--- a/core/modules/migrate/src/Plugin/migrate/id_map/Sql.php
+++ b/core/modules/migrate/src/Plugin/migrate/id_map/Sql.php
@@ -971,7 +971,7 @@ protected function getMigrationPluginManager() {
    * {@inheritdoc}
    */
   public function getHighestId() {
-    // Ensure that at the ID an integer.
+    // Ensure that the first ID is an integer.
     $keys = $this->migration->getDestinationPlugin()->getIds();
     if (reset($keys)['type'] !== 'integer') {
       throw new \LogicException('To determine the highest migrated ID the first ID must be an integer');