diff --git a/lib/active_storage/migration.rb b/lib/active_storage/migration.rb
index 99d8b8554b0a85e1725caa8b22d1563cb8472973..e843c1b630051a42fe839531090543088d9a7642 100644
--- a/lib/active_storage/migration.rb
+++ b/lib/active_storage/migration.rb
@@ -21,9 +21,7 @@ def change
       t.datetime :created_at
 
       t.index :blob_id
-      t.index [ :record_type, :record_id ]
-      t.index [ :record_type, :record_id, :name ], name: "index_active_storage_attachments_record_and_name"
-      t.index [ :record_type, :record_id, :blob_id ], name: "index_active_storage_attachments_uniqueness", unique: true
+      t.index [ :record_type, :record_id, :name, :blob_id ], name: "index_active_storage_attachments_uniqueness", unique: true
     end
   end
 end