diff --git a/db/migrate/20170813153048_add_missing_indexes.rb b/db/migrate/20170813153048_add_missing_indexes.rb
new file mode 100644
index 000000000..9da177a30
--- /dev/null
+++ b/db/migrate/20170813153048_add_missing_indexes.rb
@@ -0,0 +1,7 @@
+class AddMissingIndexes < ActiveRecord::Migration[5.1]
+  def change
+    add_index :photos, :author_id
+    add_index :user_preferences, %i[user_id email_type], length: {email_type: 190}
+    add_index :locations, :status_message_id
+  end
+end