From 7c071b0e338636cdb79377eab6ba4daec5f3b6be Mon Sep 17 00:00:00 2001
From: Tung Nguyen <tongueroo@gmail.com>
Date: Fri, 11 Dec 2020 15:57:47 +0000
Subject: [PATCH] require singleton

---
 lib/terraspace/app.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/terraspace/app.rb b/lib/terraspace/app.rb
index 33e0b72c..f28f783d 100644
--- a/lib/terraspace/app.rb
+++ b/lib/terraspace/app.rb
@@ -1,3 +1,5 @@
+require "singleton"
+
 module Terraspace
   class App
     include Singleton