diff --git a/db/migrate/20160216165757_add_media_objects_index.rb b/db/migrate/20160216165757_add_media_objects_index.rb
new file mode 100644
index 00000000000..66d9a531642
--- /dev/null
+++ b/db/migrate/20160216165757_add_media_objects_index.rb
@@ -0,0 +1,8 @@
+class AddMediaObjectsIndex < ActiveRecord::Migration
+  tag :postdeploy
+  disable_ddl_transaction!
+
+  def change
+    add_index :media_objects, :root_account_id, algorithm: :concurrently
+  end
+end