diff --git a/recipes/engine_v2/builder.expected/basic_gcs.json b/recipes/engine_v2/builder.expected/basic_gcs.json
index 44ea53f..52146c6 100644
--- a/recipes/engine_v2/builder.expected/basic_gcs.json
+++ b/recipes/engine_v2/builder.expected/basic_gcs.json
@@ -945,7 +945,7 @@
       "cp",
       "-r",
       "[CLEANUP]/host_debug_unopt_tmp_1/*",
-      "gs://flutter_archives_v2/flutter_infra_release/flutter/"
+      "gs://flutter_archives_v2/flutter_infra_release/flutter//"
     ],
     "cwd": "[CACHE]/builder/src/flutter",
     "env": {
@@ -969,7 +969,7 @@
     "infra_step": true,
     "name": "gsutil host_debug_unopt",
     "~followup_annotations": [
-      "@@@STEP_LINK@gsutil.upload@https://console.cloud.google.com/storage/browser/flutter_archives_v2/flutter_infra_release/flutter/@@@"
+      "@@@STEP_LINK@gsutil.upload@https://console.cloud.google.com/storage/browser/flutter_archives_v2/flutter_infra_release/flutter//@@@"
     ]
   },
   {
diff --git a/recipes/engine_v2/builder.py b/recipes/engine_v2/builder.py
index f48873d..650ce3f 100644
--- a/recipes/engine_v2/builder.py
+++ b/recipes/engine_v2/builder.py
@@ -152,7 +152,7 @@
   if archive_config.get('type') == 'gcs' and archive_config.get('include_paths', []):
     commit = api.repo_util.get_commit(checkout.join('flutter'))
 
-    artifact_path = 'flutter_infra_release/flutter/%s' % commit
+    artifact_path = 'flutter_infra_release/flutter/%s/' % commit
     api.gsutil.upload(
         source='%s/*' % archive_dir, bucket='flutter_archives_v2',
         dest=artifact_path,  args=['-r'],